Solving Equations (INTRO)

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

5.    6b = 30

• x = 36
• x = 24
• x = 180
• x = 5

Which equation has x = 5 as the solution?

• x + 15 = 10
• 2x = 5
• 2x = 10

x - 62 = 123

How should you show your work to isolate the variable and solve the equation?

• Add 62 to 123

• Subtract 62 from 123

• Multiply 123 to 62.

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

how would you solve this equation: 9x=153?

• multiply

• divide

• add

• subtract

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

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

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9

n - 6 = -15

• n = -21
• n = -9
• n = 9
• n = 21

2n=100

• N=10
• N=50
• N=20