Model and Solve Variables on Both Sides

3x + 10 + 2x = 2 (x + 8)

5x + 10 = 2x + 16

What is the next step? Drag the correct part under the equation. Be sure to put the one labeled left on the left.

d

a

/2x (right side)

-2x (right side)

/2x (left side)

-2x (left side)

a

b

c

d

e

f

i

g

h

-x

1

x

x

-1

x

-1

-x

-1

Write the equation for the model.

• 5x + 5 = 3x + 1

• 5x - 1 = 3x + 5

• 5x + 1 = 3x + 5

Tags

CCSS.HSA.CED.A.3

Write the equation for the model.

• 2x - 2 = -x + 7

• 2x + 2 = x + 7

• 2x + 7 = -x - 2

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

Write the equation for the model.

• -x - 4 = 3x

• 3x + 4 = -x

• 3x - 4 = -x

Tags

CCSS.HSA.CED.A.3

Write the equation for the model.

• 3x + 1 = -x + 5

• -x + 1 = 3x + 5

• -x + x = 3x + 5x

Tags

CCSS.HSA.CED.A.3

Write the equation for the model.

• -2x - 1 = 2x - 9

• 2x - 1 = -2x - 9

• -2x - 9 = 2x - 1

Tags

CCSS.7.EE.B.4A

Write the equation for the model.

• 3x + 8 = x

• 3x = x + 8x

• 3x = x + 8

Tags

CCSS.HSA.CED.A.3

Write the equation for the model.

• 3x + x = -x - 3x

• -x + 1 = 3x - 3

• 3x + 1 = -x - 3

Tags

CCSS.7.EE.B.4A