Mathematics 0580 · IGCSE · Equations

Equations — practice question

(a)[2]

Simplify the expression $9x - 2y - 5x - y$.

(b)[3]

Using $P = 4ab + 3b^2$, determine the value of $a$ when $P = 35$ and $b = 5$.

(c(i))[1]

Solve $10x = 5$.

(c(ii))[2]

Solve $7x - 3 = 2x + 11$.

(c(iii))[3]

Solve $3(2x - 1) = 27$.

(d)[2]

Rearrange $T = 5(p + 2)$ so that $p$ is the subject.

(e)[3]

Solve the simultaneous equations, and show every stage of your working. $3x - y = 22$ $x + 2y = 5$

Worked solution & mark scheme

This 16-mark question has a full step-by-step worked solution and mark scheme. One marking point: The simplified result is $4x-3y$.

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