Isolating Variable

What is the inverse operation to isolate the variable in the equation 6m + 8 = 4m - 3?

• Multiply by 4m and then add 2

• Add 4m to both sides and then multiply by 2

• Subtract 4m from both sides and then divide by 2

• Divide by 4m and then subtract 2

Solve the equation 3x + 5 = 2x - 3 for x.

• x = -8

• x = 0

• x = -5

• x = 10

What is the first step to isolate the variable in the equation 4y - 7 = 2y + 5?

• Combine like terms

• Divide by 4

• Subtract 7

• Add 5

Use the distributive property to isolate the variable in the equation 2(3x - 4) = 10.

• x = 5

• x = 3

• x = 6

• x = 2

Tags

CCSS.7.EE.B.4A

Solve the equation 2p - 3 = 5p + 2 for p.

• 3

• 7

• -5

• 10

Apply the distributive property to isolate the variable in the equation 3(2x + 7) = 21.

• 3(2x) + 3(7) = 21

• 2x + 21 = 21

• 6x + 21 = 21

• 2x + 7 = 21

Tags

CCSS.7.EE.B.4A

Use the distributive property to isolate the variable in the equation 3(2x - 5) = 15.

• x = 4

• x = 3

• x = 5

• x = 2

Tags

CCSS.7.EE.B.4A

In the equation 2a + 3b = 4a - 5b, what is the value of b when a = 6?

• -2

• 10

• 0

• 7

Solve for y

• A

• B

• C

• D

Tags

CCSS.6.EE.C.9

Solve for x:

• x = 21

• x = 7

• x = −21

• x = 4

Tags

CCSS.6.EE.B.7