Identifying and Simplifying Expressions

Simplify the expression:

9c + 12 + (-8) + (-5c)

• 14c + 20

• 4c + 20

• 4c + 4

• 8

Simplify the expression:

a + c + 2a + 6c + a + 9a + c + a

• 11a + 6c

• 13a + 8c

• 14a + 8c

• 22

Simplify the expression:

6p - 12 - 3p + 16

• 9p + 28

• 3p + 4

• 3p + (-28)

• 9p + 4

Simplify the expression:

-7c - 12 - 5c - 1

• -12c - 13

• -25

• 12c + 13

• -12c + 13

Simplify the expression:

9a + 12 + (-8) + (-5a)

• 14a + 20

• 4a + 20

• 4a + 4

• 8

List the constant terms from the expression below:

-12p + 3 + 19 + 17p

• 3, 19

• -12, 17

• -12, 3, 19, 17

• 12, 3, 19, 17

Simplify the expression:

-5a + 4 + 3a + 6

• 8a + 10

• -2a + 10

• 2a + 10

• 8

Simplify the expression:

9c + 12 - 7c

• 16c + 12

• 2c + 12

• 28c

• 11c

Select the first step that you would do to simplify this expression: 9c - 16 - 4c + 20

• reorder the terms

• combine the like terms

• rewrite the expression as addition

• substitute

• he combined the constant terms incorrectly; the correct simplified expression is -5r + 33

• he should have combined all of the terms; the correct simplified expression is  -8

• he should have combined all of the terms; the correct simplified expression is 49