Forming and Solving Equations

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

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

a.

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

[2]

b.

The perimeter of the triangle is 54 cm. Work out the value of $x$ .

[2]

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

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

a.

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

[2]

b.

The perimeter of the triangle is 54 cm. Work out the value of $x$ .

[2]

Forming and Solving Equations Questions