Mathematics 0580 · IGCSE
Equations
100 practice questions on Equations, with worked solutions and instant marking.
Solve the equation $4x = 10$.
Feb/March 2017
Choose a marble at random from the bag, then replace it. Write down the probability that the marble is black.
Feb/March 2017
Factorise $3x^2 + 11x - 4$ into brackets.
Feb/March 2017
Neelum rents a machine to clean carpets. The hire charge is $25$ for the first day and $9$ for every additional day after that first day. Altogether, Neelum pays $88$ to hire the machine.
Feb/March 2018
Solve the simultaneous equations. Show every stage of your working. $2x+\frac{1}{2}y=13$ and $3x+2y=17$.
Feb/March 2018
Solve the equation $2x^{2}+7x-3=0$. Show all your working, and write each answer correct to 2 decimal places.
Feb/March 2018
A stationery shop sells pens and notebooks. A pen costs $p$ cents, and a notebook costs $n$ cents.
Feb/March 2018
Complete the statement about the value of $w$.
Feb/March 2019
Solve the simultaneous equations below. Show every step of your working. $6x - 3y = 12$, $2x + 3y = 16$.
Feb/March 2019
Find the numerical value of $w$.
Feb/March 2019
You must include all of your working.
Feb/March 2020
Solve the simultaneous equations. You must include all your working. $5x + 6y = 14$, $2x + 8y = 7$.
Feb/March 2021
Solve the simultaneous equations. Show every stage of your working. $x - y = 7$, $x^{2} + y = 149$.
Feb/March 2021
Solve the equation $\frac{25-2u}{3}=2$.
Feb/March 2023
You need to show all your working.
Feb/March 2023
Find the values of $x$ for which $6x + y = 10$ and $y = x^2 - 3x + 10$ both hold.
Feb/March 2023
Find the solution.
Feb/March 2023
Solve the simultaneous equations. You must present all of your working. $3x - 2y = 19$ $x + y = 3$
Feb/March 2023
For $P = 3a + 5$, determine the value of $P$ at $a = 2$.
Feb/March 2024
Solve these simultaneous equations: $4t - 3w = 11$ and $6t + 2w = -3$.
Feb/March 2025
Raj is thinking of a negative number $n$. He adds 10 to $n$ and then multiplies the result by 5. This gives 30. Find the value of $n$.
Feb/March 2025
Solve the equation $5(3y - 2) = 35$.
May/June 2015
Solve $3(x + 4) = 2(4x - 1)$.
May/June 2015
Solve the simultaneous equations below. You must show all your working. $5x + 2y = -2$ $3x - 5y = 17.4$
May/June 2015
Solve for $w$ in $5(w + 4 \times 10^3) = 6 \times 10^4$.
May/June 2015
Solve the equation $2x^2 + x - 2 = 0$. Show all your working and give the answers correct to 2 decimal places.
May/June 2015
Solve the equation given by $3(x + 4) = 2(4x - 1)$.
May/June 2015
Sonia is employed in a toy shop.
May/June 2015
Find the value of $A$ for $r = 5.6$. Round your answer to 1 decimal place.
May/June 2015
Set up an equation and solve it to determine the value of $x$.
May/June 2015
At the start of the trip, Alan covered $x$ km and his car consumed $6$ litres of fuel. Its fuel consumption rate was $\frac{600}{x}$ litres per $100$ km.
May/June 2015
Solve the pair of simultaneous equations. You must show every step of your working.
May/June 2016
Solve the simultaneous equations. Show every step in your working. $3x + 4y = 14$ $5x + 2y = 21$
May/June 2016
Solve the simultaneous equations below. You must show all of your working. $3x+7y=-21$, $6x+4y=3$.
May/June 2016
Solve the equation $6(y+1)=9$ for $y$.
May/June 2016
Solve the simultaneous equations. Provide all the working. $3x + 4y = 14$, $5x + 2y = 21$.
May/June 2016
Solve $6(y+1)=9$ for $y$.
May/June 2016
Solve for $x$ in the equation $x + 7 = 15$.
May/June 2016
Show that the equation $x^2-40x+A=0$ is obtained.
May/June 2016
Alfonso covers 10 km at an average speed of $x$ km/h. On the following day, he covers 12 km at an average speed of $(x - 1)$ km/h. The 10 km journey takes 30 minutes less than the 12 km journey.
May/June 2016
Solve the simultaneous equations. Show all your working. $5x - 2y = 24$ and $7x + 4y = -14$.
May/June 2017
Solve the equation $2 - x = 5x + 1$.
May/June 2017
Finish the statement about the value of $m$.
May/June 2017
Solve for $x$ in $2 - x = 5x + 1$.
May/June 2017
Solve the equation $5x^{2} + 10x + 2 = 0$. You should show every step of your working and present your answers correct to 2 decimal places.
May/June 2017
Camilla signs up for a soccer club. The overall joining cost consists of membership, kit and travel.
May/June 2017
For this question, all lengths are measured in centimetres.
May/June 2017
Solve the simultaneous equations.
May/June 2018
Solve $8x - 5 = 7$.
May/June 2018
If $w = [BLANK],\; 10w = 70$.
May/June 2018
Find the values of $a$ and $b$.
May/June 2018
Solve for $p$: $\dfrac{1 - p}{3} = 4$.
May/June 2018
Complete the sentence relating to the value of $m$.
May/June 2018
Calculate $x$.
May/June 2018
Solve the simultaneous equations. All your working must be shown. $3x - 2y = 23$ $2x + 5y = 9$
May/June 2018
Finish these statements.
May/June 2018
Work out $\frac{1-p}{3}=4$.
May/June 2018
Solve $3(2x - 4) = 4(x + 7)$.
May/June 2018
Solve the equation $7x - 5 = 16$.
May/June 2019
Solve the simultaneous equations $5x - 2y = 26$ and $7x + 6y = 10$. All working must be shown.
May/June 2019
Solve the simultaneous equations, and make sure that all of your working is shown. $5x + 8y = 4$ $\frac{1}{2}x + 3y = 7$
May/June 2019
Solve the equation. Show all your working and give your answers accurate to 2 decimal places.
May/June 2019
Solve the equation $9f + 11 = 3f + 23$.
May/June 2019
The equation $ax^2 + a = 150$ has $x = 7$ as one root.
May/June 2019
The formula is $s = ut + \frac{1}{2}at^2$.
May/June 2019
Solve the simultaneous equations $2x+y=3$ and $x-5y=40$. Show all your working.
May/June 2021
Solve the simultaneous equations below. Show all your working. $2x+y=3$ $x-5y=40$
May/June 2021
Solve $\frac{1}{x + 1} + \frac{9}{x + 9} = 1$.
May/June 2021
Joe chooses a number, $n$, multiplies it by 3, and then takes away 5. The answer is 22.
May/June 2022
Solve the simultaneous equations. Make sure that you show all your working.
May/June 2022
The graphs of $y = x + 1$ and $y = x^2 - 3x - 11$ meet at the points $A$ and $B$.
May/June 2022
Write an expression, in terms of $w$ and $d$, for the team’s total points.
May/June 2022
Find how many apples Geeta buys.
May/June 2022
Find the value of $k$. Show your working in full.
May/June 2022
For $y$ hours of bicycle hire, the cost, $C$, is determined by the formula $C = 12 + 3.5y$. Maria pays $36.50 in order to hire this bicycle.
May/June 2023
In a cinema, the price of an adult ticket is $a$, while the price of a child ticket is $c$.
May/June 2023
All measurements in this question are in centimetres. The diagram shows two line segments, $AB$ and $CD$. $AB$ has length $10x - 12$. $CD$ has length $2x + 3$. $AB$ is 3 times the length of $CD$. The diagram is not drawn to scale.
May/June 2023
Calculate the value of $r$.
May/June 2023
For the equation $ax^2 + b = 181$, one root is $x = 8$. Both $a$ and $b$ are positive integers greater than 1.
May/June 2023
Solve for $x$ in $\frac{30}{x} = 6$.
May/June 2023
Find the solutions to $x^2 + 5x - 7 = 0$. Show every step of your working and give your answers correct to 2 decimal places.
May/June 2023
Calculate how many tins he had at the start of the day.
May/June 2023
Set up and solve an equation to determine the cost of one shirt.
May/June 2023
You are required to show all of your working.
May/June 2024
Determine the value of $x$.
May/June 2024
Solve these simultaneous equations.
May/June 2024
Solve the simultaneous equations. Show every step of your working. $\frac{3x}{2} + 5y = 5$ and $4x - 3y = 46$.
May/June 2024
Solve the simultaneous equations below. You must show every step of your working. $4y + 3x = 13$ $y = x^2 - 18$
May/June 2024
Determine the value of $r$.
May/June 2024
Find the values of $t$ and $w$ that satisfy the simultaneous equations $5t - 2w = 19$ and $3t + 2w = 5$.
May/June 2024
Calculate the total points for this team.
May/June 2024
Solve the equation $5x + 8 = 3x - 2$.
May/June 2025
Solve for $x$ and $y$ using the simultaneous equations $2x + 5y = 5$ and $3x + 4y = 11$.
May/June 2025
Two numbers have a total of $-2$ and a product of $-15$.
May/June 2025
Beth considers a positive number $n$. She squares $n$ and then subtracts 55. The result is 9.
May/June 2025
Solve the simultaneous equations $5x + 2y = 3$ and $3x + 4y = 27$.
May/June 2025
Solve these simultaneous equations: $8x + 5y = 4$ and $2x - y = 10$.
May/June 2025
The line $y = 7x + 3$ meets the curve $y = x^2 + 5x - 12$ at points $A$ and $B$.
May/June 2025
Solve for $x$ in $8x + 7 = 39$.
May/June 2025
Solve the simultaneous equations $4x - 5y = 13$ and $3x - 2y = 8$.
May/June 2025