Equations in One Variable

Solve the linear equation.

x - 15 = -19

• x = 34

• x = -34

• x = 4

• x = -4

Solve the linear equation.

-12y = 108

• y = -9

• y = 120

• y = 9

• y = -120

Solve the linear equation.

x / 7 = -8

• x = -56

• x = -15

• x = 15

• x = 56

Solve the linear equation.

¾ x = 27

• x = 20 ¼

• x = 36

• x = -20 ¼

• x = -36

solve: 14x = 40 + 9x

• 4

• 8

• 35

• 45

Kylie and Ricardo decide to start a dog watching business for their neighborhood. Kylie thinks it would be best to charge customers $27 for a membership and then $5 per time they walk a dog. Ricardo thinks it would be best to charge $8 per dog walk. For what number of walks will their two plans cost the same amount of money?

Mathematical Equivalence

ON

Solve the linear equation.

5z + 2 = 6

• z = 8

• z = -8

• z = 4 / 5

• z = 5 / 4

Solve. 
3x - 4 - 5x = x + 4 + x

• -4

• 2

• 4

• -2

Solve x/2+1/3=-5/3

• x=4

• x=2

• x=-4

• x=-2

Solve for x:

-4x -1 + 5x = 9x + 3 - 7x