Modeling Variables on Both Sides

Using the model, write the equation and solve.

• 6 = 2x; x = 4

• 6 = 2x; x = 8

• 6 = 2x; x = 12

• 6 = 2x; x = 3

Tags

CCSS.6.EE.B.7

What is represent by the model?

• 2b+8-12

• 2b+8=12

• 8-2b=12

• b²+8=12

Tags

CCSS.HSA.CED.A.3

The equation for the model is 3x - 5 = 7.  What is the value of x?

• x = 6

• x = 4

• x = 7

• x = 12

Tags

CCSS.7.EE.B.4A

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

• x = 5/3

• x = 3

• x = 1

• x = 2

Which statement best describes the first step to the equation? -11-3x=44-2x

• Add 3 to both sides

• Add 11 to both sides

• Get the variables on one side

• Add 2 to both sides

What is the correct equation and solution for the picture modeled above?

• 5x+1=3x+5; x=2

• 1x+5=5x+3; x=1/2

• 6x=8x; x=0

• 6+8; x=14

Tags

CCSS.8.EE.C.7B

Which equation is modeled here, and what is its solution?

• 5x + 8; x=13

• 5x + 3 = 3x + 5; x=1

• 2x + 3 = 3x + 5; x=-2

• 3x + 3 = 2x + 9; x=6

Which equation is modeled here and what is its solution?

• 5x - 3 = 6x - 4; x=1

• -3x + 4 = 2x + 5; x=-1/5

• -5x + 3 = -6x + 4; x=1

• 5x - 2 = 4x - 2; x=0

Solve for x

• 2

• 6

• -2

• -6

Tags

CCSS.8.EE.C.7B

Solve for x

• 3

• 7

• -7

• 3/5

Tags

CCSS.7.EE.B.4A