7th- Expressions

Which of the sets of terms below does NOT include like terms?

• 9m, -9m, 7m

• 1p, -7p, 7p

• 30, -25, 25

• 6x, 6y, 6z

Which is the correct simplified version of the expression: 32x+8-34x

• 66x+8

• 74x

• -2x+8

• 6x

Simplify the following expressions by distributing:

4(-w+8)

Simplify the following expressions by distributing:

-2.5(4p-16)

Simplify:

3(r+5)-4r

Simplify:

-7(3z+5t-3g)

Write an expressions for the perimeter of the triangle below.

Simplify an expression for the area of a rectangle shown.

Simplify the following expressions by distributing:

 $\frac{1}{2}\left(8-4g\right)$  

Which of the following expressions represents the perimeter of the rectangle?

• 5x-10

• 5x-6

• 10x-12

• 10x-20