Solving equation review

What is the first step in solving this equation:
5x + 7 = 12

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

Tags

CCSS.7.EE.B.4A

Solve:
-4x = 24

• 20
• -20
• 6
• -6

Tags

CCSS.6.EE.B.7

Simplify the expression.
-3(v + 1) - v

• -3v - 3 - v
• -4v - 3
• 4v - 3
• 3 - 4v

Tags

CCSS.6.EE.A.3

Solve:

• x = 20
• x = 7
• x = 10
• x = 3

Tags

CCSS.6.EE.B.7

What is the first step to complete when solving this equation?
10 - 3y = 4

• Add 10
• Subtract 10
• Add 3
• Divide by -3

Tags

CCSS.7.EE.B.4A

x + 2 = x + 4

• all real numbers
• no solution
• x = 0

Tags

CCSS.8.EE.C.7A

3(2x + 4) = 2(6+3x)

• all real numbers

• no solution

• x = 0

Tags

CCSS.8.EE.C.7A

2. In which step did the first error occur in the solution of the equation?
Problem:   4 ( 2x  –  6 ) + 2 = 18 
Step 1:   8x - 6 + 2 = 18
Step 2:  8x – 4 = 18
Step 3:  8x = 22
Step 4:  x = 2.75

• A. Step 1
• B. Step 2
• C. Step 3
• D. Step 4

5.  

• x = 12
• x = 1/3
• x = -1/3
• x = -12

Tags

CCSS.7.EE.B.4A

1.  Which equation below represents the second step of the equation process?   Step 1:  4( 3x + 2) + 2= 130
Step 2:  ????????????
Step 3:  12x  +10 = 130
Step 4:  12x = 120
Step 5:  x=10

• A.      4(5x) +2 = 130
• B.     4 (3x + 4) =130
• C.    12x + 2 +2 = 130
• D.     12x + 8 + 2 =130

Tags

CCSS.HSA.REI.A.1