Equations and Expressions Review

Simplify the following expression:
-10x + 15 - 3x + 2

• 13x² + 17
• -13x² + 13
• -13x + 17
• -7x + 17

Tags

CCSS.7.EE.A.1

Simplify the following expression:
-8x + 4x

• -12x
• -4x
• 4x
• 12x

Tags

CCSS.7.EE.A.1

Simplify the following expression:
19 - ( 3 - 5b)

• 16 + 5b
• 21 + 5b
• 16 - 5b
• 21 - 5b

Tags

CCSS.6.EE.A.3

Combine like terms
3x + 2x + 3y - 7y

• 5x + 10y
• 5x + 4y
• 5x - 4y
• 5x -10y

Tags

CCSS.7.EE.A.1

Simplify -5(x + 4)

• 5x + 4
• -5x + 4
• -5x - 20
• -5x + 20

Tags

CCSS.6.EE.A.3

Simplify.
-5n + 2(4 - 5n)

• -15n + 8
• -5n - 2
• -5n + 9
• 5n + 8

Tags

CCSS.6.EE.A.3

Solve:
-19 + 3x = 3( x - 5)

• No Solutions
• Many Solutions
• x = (-6)
• x = 8

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve the equation: 
x + 7 = 12

• x = 5
• x = 19
• x = -5
• x = 84

Tags

CCSS.6.EE.B.7

Solve the equation:
x - 2.6 = -4.6

• x = 2
• x = -2
• x = 7.2
• x = -7.2

Tags

CCSS.6.EE.B.7

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.
• Add 7 to both sides.
  The solution is x = 19.
• Multiply both sides by 7 The solution is x = 84.

Tags

CCSS.6.EE.B.7