Equation Test Review

To solve this equation, there are two inverse operations needed to isolate the variable. True or false?

• True

• False

Tags

CCSS.HSA.REI.A.1

Choose the correct steps to isolate the variable and solve this two-step equation:

• Add 6 to both sides then divide both sides by 5

• Multiply both sides by 5 then subtract 6 from both sides

• Subtract 6 from both sides then multiply both sides by 5

Tags

CCSS.7.EE.B.4A

• Add 6 to both sides then divide both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Divide both sides by 5 then add 6 to both sides

Tags

CCSS.7.EE.B.4A

Solve for y

• -85

• -42

• -66

• 14

Tags

CCSS.7.EE.B.4A

Solve.

• x = 12

• x = 24

• x = 4

• x = 9

Tags

CCSS.7.EE.B.4A

What is the first step to solve this equation? 2x + 3(5x - 7) = 47

• Add 7 to both sides

• Combine 2x and 5x

• Distribute the 3 to 5x and - 7

• Subtract 2x from 5x

Tags

CCSS.8.EE.C.7B

Which would NOT be an acceptable next step in solving this equation? −4x − 7 = 3x + 2

• Subtract 2 from both sides

• Combine -4x and 3x to make -1x

• Subtract 3x from both sides

• Add 4x to both sides

What should be the first two steps to solve this equation? 2x +4(3x + 6) = 90

• combine 2x and 3x and then distribute the 4.

• subtract 6 from both sides and then divide by 4

• distribute the 4 and then combine like terms by addition

• combine 2x and 3x and then subtract 6 from both sides

Tags

CCSS.8.EE.C.7B

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides

• Add the 2a and a 

• Distribute 4 to a and -5

• Distribute -4 to a and -5

Tags

CCSS.8.EE.C.7B

What operation did he perform to get from Step 1 to Step 2?

• Subtracted 2x from both sides of the equation

• Subtracted 9 from both sides of the equation

• Multiplied both sides of the equation by 3

• Added -3 to both sides of the equation

Tags

CCSS.HSA.REI.A.1