Forming and Solving Equations

The lengths, in cm, of the sides of a triangle are $4 x - 2$ , $2 x + 5$ and $3 x + 1$

A triangle with side lengths labeled as 4x - 2, 2x + 5, and 3x + 1.

a.

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

[2]

b.

The perimeter of the triangle is 49 cm. Work out the value of $x$ .

[2]

The lengths, in cm, of the sides of a triangle are $4 x - 2$ , $2 x + 5$ and $3 x + 1$

A triangle with side lengths labeled as 4x - 2, 2x + 5, and 3x + 1.

a.

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

[2]

b.

The perimeter of the triangle is 49 cm. Work out the value of $x$ .

[2]

Forming and Solving Equations Questions