Mathematics 0580 · IGCSE · Algebraic manipulation

Algebraic manipulation — practice question

The figure depicts a rectangle whose length is $3x - 12$ and whose width is $x + 7$. It is not to scale.
(main)[3]

Find an expression for the perimeter of the rectangle. Give your answer in its simplest form.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “M1: $x+7+3x-12$” …

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