7-3 Solving Simple Equations

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

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

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 
• Subtract 62 from each side.
• Multiply each side by 62.
• Add 123 to each side.

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

Solve the equation:
x - 5.5 = 10.5

• x = 16
• x = -15
• x = 5
• x = -5

x - (-1) = 11

• x = 10
• x = 12
• x = -10
• x = 11

-4 + r = 10

• r = 14
• r = 6
• r = -6
• r = 40

10 = -7 + b

• b = -17
• b = 3
• b = 17
• b = -3

n - 6 = -15

• n = -21
• n = -9
• n = 9
• n = 21

Solve the following equation

x + 8 = 15

• x = 23

• x = 22

• x = 7

• x = 6

What is the inverse operation needed to solve for p?
765 = p - 254

• subtraction
• addition
• multiplication
• division