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.
(main)[4]
Calculate the value of $x$.
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “M1 if $10x - 12 = 3(2x + 3)$ is written” …