Solve With Variables on Both Sides

• x = 4
• x = -4
• x = 36
• x = -36

Write the equation for the model.

• 3x + 1 = -x + 5

• -x + 1 = 3x + 5

• -x + x = 3x + 5x

Write the equation for the model.

• -2x - 1 = 2x - 9

• 2x - 1 = -2x - 9

• -2x - 9 = 2x - 1

Write the equation for the model.

• 3x - 7x = 2x + 5x

• 3x + 5 = 2x - 7

• 3x - 7 = 2x + 5

3x = 15 - 2x

• x = 9

• x = 3

• x = -3

• x = 6

8 - 3a + 12 = 2a

• a = 4

• a = 1

• a = 3

• a = 5

• Subtract 5n from both sides.

• Add 14 to 3n

• Subtract 6 from 5n

8w - 8 = - 4x + 16

• 8

• 16

• 24

• 2

Solve for f:
f - 4 = 6f + 26

• f = -5

• f = 5

• f = 6

• f = -6

Select the situation that could be modeled by: 120 + 25x = 45x.

• John bought a car radio for $120 and speakers for $25 each. Joe bought a radio for $45. They each paid the same. How much did they spend?

• George charges a flat fee of $120 to mow a lawn plus $25 an hour. Greg charges $45 a hour to mow a lawn. After how many hours do they make the same amount?

• Lisa pays $120 for each purse she buys plus an additional $25 to have them personalized. Lauren pays $45 for each purse she buys. How many purses must they buy for the amount they spent to be the same?