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P.O.D. Solve: 1.r – 5 = -212.. Solving ax + b = c.

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Presentation on theme: "P.O.D. Solve: 1.r – 5 = -212.. Solving ax + b = c."— Presentation transcript:

1 P.O.D. Solve: 1.r – 5 = -212.

2 Solving ax + b = c

3 What are the two methods we’ve learned for solving equations? 1.Add the opposite: EX: -7 = m Multiply by the reciprocal EX: x = -16OR 30 = -5p

4 How do we solve equations that require 2 steps??? Example: x + 3 = 11 We must get variable ALONE!! STEPS: #1. Add Opposite #2. Multiply by Reciprocal x =

5 Examples: 1. -4x + 3 = = -8 – 6y

6 3. -2 = -8m

7 When Sue works overtime at the zoo, she earns $9.80 per hour. She is also paid $8.00 for meals and $3.00 for transportation. On Sunday, she earned a total of $ How many hours did Sue work? EQUATION: meal$ + trans$ + $9.80#hrs =TOTAL $ $ $9.80h = $77.15

8 Equation: $ $ $9.80h = $ h = h = h = 6.75Solution: Answer: 6.75 hours


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