Equivalent Expressions

Which of the following expressions is equivalent to -7x + 3 - 5x - 10?

• -12x - 7

• 2x - 7

• 12x + 13

• -2x - 13

8x + 16 is equivalent to all of the following expressions except:

• 8(x + 2)

• 2x + 5 + 6x + 11

• 2(4x + 8)

• 10x - 2x - 20 + 4

Which of the following properties is the explanation for why 4v +2r is equivalent to 2v + 4r?

• commutative property of addition

• commutative property of multiplication

• associative property

• distributive property

• 5n + 25

• 20n + 100

• It cannot be simplified.

• 2n + 5

Simplify:

-10n - 30 - 5n

• It cannot be simplified.

• 5n + 30

• -5n - 30

• -15n - 30

Simplify:

4n - 9 + 6r - n - 4r - 2r

• 3n - 9 - 12r

• 3n - 9

• 3n - 10r - 9

• It cannot be simplified.

Which of the following expressions is equivalent to 3x + 4x - 5?

• 2x

• 7x - 5

• 11x

• x - 5