Equations

19  + a  =  -50

• a = -950
• a =  -69
• a = -31
• a = -50/19

-10z = 40

• z = 50
• z = 30
• z = -4
• z = 4

18 = -3c

• c = 6
• c = -6
• c = 15
• c = -15

Solve: 3(x-4) = -3

• 3
• -3
• 5
• -5

Solve: 4x + 3 = -5

• 1/2
• -1/2
• -2
• 2

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

 What is the second step in solving the following equation?
-3x + 5 = 20

• Subtract 5 from both sides
• Divide both sides by -3
• Divide both sides by 3
• add 3x to both sides

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

3(3x - 6) = 18

• x = 4
• x = -4
• x=8
• x= -12

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4