Forming and Solving Equations

The lengths, in cm, of the sides of a triangle are $5 x - 3$ , $x + 2$ and $4 x - 7$

A triangle with side lengths labeled as 5x - 3, x + 2, and 4x - 7.

a.

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

[2]

b.

The perimeter of the triangle is 82 cm. Work out the value of $x$ .

[2]

The lengths, in cm, of the sides of a triangle are $5 x - 3$ , $x + 2$ and $4 x - 7$

A triangle with side lengths labeled as 5x - 3, x + 2, and 4x - 7.

a.

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

[2]

b.

The perimeter of the triangle is 82 cm. Work out the value of $x$ .

[2]

Forming and Solving Equations Questions