Forming and Solving Equations

Hard50%

The lengths, in cm, of the sides of a triangle are $3 x - 5$ , $2 x - 1$ and $x + 1$

A triangle with side lengths labeled as 3x - 5, 2x - 1, and x + 1.

Write down an expression, in terms of $x$ , for the perimeter of the triangle.

[2]

The perimeter of the triangle is 31 cm. Work out the value of $x$ .

[2]

Forming and Solving Equations Questions