Solve for Variables on Both Sides

Solve: -3x + 20 = 2x - 40

• x = 15

• x = 12

• x = -15

• x = -12

Solve: 5x + 15 = 10x - 40

• x = 10

• x = -10

• x = 11

• x = -11

Solve: -2x + 18 = 2x + 40

• x = -5.5

• x = 6.5

• x = -4.5

• x = 5.5

Solve: 4x - 3 = 6x - 19

• x = -8

• x = 11

• x = -11

• x = 8

Solve the equation for the variable

• 4

• -10

• 1

• -1

• 1/2

• 4

• 3

• 1

Tags

CCSS.8.EE.C.7B

• 6

• -6

• -1

• 3

Tags

CCSS.8.EE.C.7B

Mathematical Equivalence

ON

Describe what was done in each solving step!

• Subtract 4x from both sides

• Step 3

• Combine Like Terms

• Step 2

• Distribute

• Step 1

Solve the equation for the variable

• 5

• 10

• 12

• 17