Combine Like Terms and Distribute to Solve Equations

Solve the equation for x:
2x + 3x + 4 = 44

• x = 8

• x = 9

• x = 10

• x = 11

Tags

CCSS.8.EE.C.7B

Solve the equation for x:
17 = 12x - 9x + 2x + 2

• x = 1

• x = 2

• x = 3

• x = 4

Tags

CCSS.8.EE.C.7B

How Comfortable are you solving equations that involve combining like terms and distributive property?

• I am a master at Solving Equations

• I am pretty good but need more practice

• I am struggling

• What is an equation?

Tags

CCSS.8.EE.C.7B

Solve:

7x + 19 = -2x + 55

• 4

• 14.8

• 8.2

• -4

Solve:

2(2x + 3) = -6(x + 9)

• 2

• 6

• -6

• 7.5

Solve:

2(4x - 3) - 8 = 4 + 2x

• x = 5/3

• x = 3

• x = 1

• x = 2

Which is the correct order in which to solve multi-step equations?

• Distribute

  Combine like terms

  Get the variable on one side by add or subtracting

  Divide or multiple

• Add or subtracting

  Distribute

  Combine like terms

  Divide or multiple

• Divide or multiple

  Add or subtracting

  Distribute

  Combine like terms

Tags

CCSS.8.EE.C.7B

8v - 4(v + 8) = 8

• 2

• 10

• 4

• -4 

Tags

CCSS.8.EE.C.7B

-19 = -8 (-4+a) - (2a+1)

• -1

• 14

• -5

• 5

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

• 5 - 2