Solving Equations

What is the first step in the following equation?

-5 + 3x = -18

• Divide by 3 on both sides

• Add eighteen to both sides

• Add five to both sides

• Subtract five from both sides

What is the first step to solve this equation?
x - 5 = 7 - 2x

• Add 7 to both sides of the equation

• Add 2x to both sides of the equation

• Subtract 2x from both sides of the equation

• Subtract 5 from both sides of the equation

Solve for x:

-4x + 1 = 21

• x=120

• x=5

• x=30

• x=-5

Solve for x:

52 = -5x - 3

• x = 11

• x = -11

• x = 275

• x = -275

Solve for a:

-3a + 8 = 14

• a = -2

• a = -7.5

• a = 2

• a = 6

Solve for x:

7(2x - 4) = 42

• x = 5

• x = 8

• x = 2

• x = 9

15 + 4a - 6 = 21

• 1
• 2
• 3
• 4

Solve for b:
 3(b - 4) = -3

• b = 3
• b = -3
• b = 5
• b = -5

Solve for x:

2x - 3 + 4x = 27

• x = 12

• x = 4

• x = 5

• x = 15

m - 7 + 5m = 11

• m = 6

• m = -2

• m = 4

• m = 3