Mathematics 0580 · IGCSE · Equations

Equations — practice question

(a)[3]

Solve $3(2x - 4) = 4(x + 7)$.

(b(i))[2]

Using this information, two equations can be set up. One of them is $7a + 4b = 85$. Write down the other equation.

(b(ii))[3]

Solve these two simultaneous equations. You must show all your working.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Final answer: $20$” …