Equation Review

What needs to be done to solve this equation?

4x = 40

• subtract both sides by 4.

• cross out the 4.

• multiply both sides by 4.

• divide both sides by 4.

What needs to be done to solve this equation?

z - 5 = 20

• subtract both sides by 5.

• add five to both sides.

• cross out the 5.

• add five on the left side of the equation.

How would we solve the following equation?

x + 3 = 10

• subtract 3 only on the left side of the equation.

• cross out the three.

• Subtract three on both sides of the equation.

• add three on both sides of the equation.

2v + 7 = 3

• v = 3

• v = 2

• v = -2

• v = -1

−6t − 7 = 17

• t = -4

• t = 6

• t = -6

• t = 4

15 = −5x + 10

• x = 3

• x = 1

• x = -1

• x =-3

3v − 9v = 30

• v = -2

• v = -5

• v = 5

• v = 7

4 − 2y + 3 = −9

• y = 8

• y = 9

• y =-9

• y = -8

7x − 10x = 15

• x = 4

• x = -4

• x = -5

• x = 5

Solve.  x/4 + 11 = 20

• 9
• 36
• 9/4
• 31/4