Equivalent Expressions Review

Simplify:

8(5x + y)

• 40x + 8y

• 40x + y

• 40x + 8

• 40xy

Which set of expressions are NOT equivalent?

• 7(2x + 9) and 7(2x) + 7(9)

• 2(7x + 9) and 9x + 11

• 9(2x + 7) and 18x + 63

• 7(9x + 2) and 63x + 14

Simplify:

x + x + x + x + x + y + y

• 7xy

• 5x + 2y

Which of the following expressions is equivalent to 6n + 12 ?

• -6n - 8 -6n + 4

• -5n + 2 - 6n + 4

• 5n + 9 + n + 3

• 6n + 9 + 6n - 3

• 2

• 4

• 8

Which is equivalent?

• ¼(x)

• 4x

• Neither

Which expressions are equivalent?

• 9 + 5 + w = (9 + 5) + w

• c - 3 and 3 - c

Ms. Gregory goes to the store to buy prizes for a class competition. The number of candy bars purchased is 4 less than twice the number of bags of chips purchased, c. Write an expression to represent the number of candy bars purchased.

• 4c - 2

• 2c - 4

• 8c

• 4 - 2c

Simplify:

4x + 5(6x + 7)

• 50x + 35

• 34x + 35

• 4x + 30x + 7

• 54x + 35

Factor:

20x + 32

• 4(8x+ 4)

• 4(5x+8)

• 2(10x+16)

• 4(13x)