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Solving Multi-Step EquationsPowerPoint Presentation

Solving Multi-Step Equations

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Solving Multi-Step Equations

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Solving Multi-Step Equations

7.2

- Distribute (if necessary)
- Combine like terms (if one same side of equation)
- Undo addition or subtraction
- Undo multiplication or division

3x+7 =16

3x =9

X=3

-3m +18 =4

-3m=-14

M =14/3

3x+36 –x =8

2x +36 =8

2x=-28

X=-14

2x+2 +x =7

3x +2 =7

3x =5

X= 5/3

- Counting by ones from any integer
- Examples:
120,121,122,…

-5,-4,-3,…

- Formula:
n, n+1, n+2, n+3, n+4….

- Counting by evens from any integer
- Examples:
2,4,6,8,…

122,124,126,128…

- Formula:
n, n+2, n+4, n+6, n+8, n+10

- Counting by odds from any integer
- Examples:
…,-9,-7,-5,-3

83,85,87,89,…

- Formula:
n, n+2, n+4, n+6, n+8, n+10

n + (n+1)+ (n+2)+ (n+3) = 358

4n+6 =358

4n =352

n =88

n+1=89

n+2=90

n+3=91

Answer: 88,89,90,91

n + (n+2) =66

2n+2 =66

2n=64

n=32

n+2=34

Answer:32, 34

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