Solving and Justifying Solutions to Equations

Solve.  5n - 4 = 21

• 10

• -5

• 5

• 2

Tags

CCSS.7.EE.B.4A

Solve:
3(x - 2) = 18

• 6.7

• 4

• 8

• -4

Tags

CCSS.7.EE.B.4A

• A
• B
• C
• D

Tags

CCSS.8.EE.C.7B

Solve:

5y + 34 = -2(-7y + 1)

• y = -4

• y = 9

• y = 4

• y = 36/19

-15 = -5x - 15

Solve the above equation. Please do not use spaces between terms on your answers. Example: x=-35

Answer explanation

Tags

CCSS.7.EE.B.4A

Which property of real numbers was used to get from Step 3 to Step 4?

• Addition Property of Equality

• Subtraction Property of Equality

• Additive Inverse Property

• Substitution Property

Tags

CCSS.HSA.REI.A.1

6x + 3(-x + 11) = 3

• -10

• 10

• 15

• -15

Tags

CCSS.8.EE.C.7B

0.75 + 2(a - 0.5) = 3a - 0.4

• 0.15

• 5

• 1.5

• 3.75

Tags

CCSS.8.EE.C.7B

Which step cannot be performed first when solving the equation
5 - 2(x - 7) = x + 1 + 3x

• Distributing -2 to (x - 7)

• Combining x and 3x

• Subtracting 1 from both sides

• 5 - 2

Addition Property of Equality Subtraction Property of Equality Multiplication Property of Equality Division Property of Equality

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

Tags

CCSS.HSA.REI.A.1