GCSE Maths Practice: forming-equations

Question 2 of 10

This question practices forming and solving a linear equation from a perimeter problem.

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\( \begin{array}{l}\text{A triangle has two equal sides of length } x, \\ \text{and a third side of 6 cm.} \\ \text{The perimeter is 30 cm.} \\ \text{Form and solve an equation to find } x.\end{array} \)

Choose one option:

Check calculations when subtracting and dividing.

Combine like terms and isolate x to find the length of the sides.