Simplifying Expressions and Solving Equations

Simplify the expression by combining like terms:
 $-7x+9+5x-3$  

•  $12x+12$  

•  $-2x+6$  

•  $-2x-12$  

•  $12x+6$  

Tags

CCSS.7.EE.A.1

Simplify the expression:
 $5m-(2m-6)$  

•  $3m+6$  

•  $7x\ +6$  

•  $3m-6$  

•  $7x-6$  

Tags

CCSS.6.EE.A.3

Simplify: 4 - 5(3t + 3)

• -15t - 11

• -15t + 16

• 15t - 11

• 15t + 16

Tags

CCSS.6.EE.A.3

Solve:

• x = 48

• x = 83

• x=25

• x = 44

Tags

CCSS.7.EE.B.4A

Solve:

4 - 3(x - 2) = 25

• x = -9

• x = -15

• x = -5

• x = -2

Tags

CCSS.7.EE.B.4A

Solve:

• x = 67

• x = 32

• x = 15

• x = 26

Solve the equation:

5(x - 3) - 7 = -2(x + 4) + 1

• x = 2

• x = 0

• x = 15/7

• x = 25/6

Solve the equation:

15(x - 2) - 21 = -3(x + 1) + 6

• x = 3

• x = 6

• x = 4

• x = 5

Rectangle ABCD has a width of 3x + 2 and a length of 4x -1 . Find the perimeter.

• 12x + 2

• 8x

• 14x + 2

• 14x + 6

Tags

CCSS.7.EE.A.1

Triangle ABC has a perimeter of 6x+7 and Triangle XYZ has a perimeter of 3x-2. What is the difference in the perimeters of the two triangles?

• 3x + 9

• 3x + 5

• 9x + 5

• 18x - 14

Tags

CCSS.8.EE.C.7B