Equations Practice

What is the first step (after setting up your workspace) in solving this equation:
5x + 7 = 12

• Divide by 5
• Subtract 5
• Multiply by 7
• Subtract 7

Tags

CCSS.7.EE.B.4A

2x - 3 + 4x = 27

• 12
• 4
• 5
• 15

Tags

CCSS.8.EE.C.7B

2x + 3(5x - 7) = 47

• 1
• 2
• 3
• 4

Tags

CCSS.8.EE.C.7B

Which equation has a solution of 24?

• -48 + 12 + x = -12
• -14 + 12 + x = -12
• -31x - 41x = -48
• -46x + 48x = 12

Tags

CCSS.6.EE.B.5

Find the Error
What error did the student make when solving the equation:
1/5x + 6 = 3/5x + 5
1x + 6 = 3x + 5
-2x + 6 = 5
-2x = -1
x = 1/2

• The student found an incorrect common denominator
• The student did not multiply all terms by the common denominator
• The student did not use opposite operations appropriately
• The student did not correctly eliminate the variable from one side of the equation

²/₃(5x + 6) = 34

• 51
• 45
• 8
• 9

Tags

CCSS.7.EE.B.4A

Solve for W:

• 9
• 11
• 15
• 10

Tags

CCSS.7.EE.B.4A

What would you multiply to not have any fractions?
½x+4=⅕x+7

• 2
• 5
• 10
• 20

What step occurred?
4x+2+3x+10
7x+12

• simplify
• inverse operations 
• combine like terms 
• solving 

Tags

CCSS.7.EE.A.1

• A
• B
• C
• D