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Solving EquationsSolving Equations
Medina 1
Multi-Step Equations
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Steps to solveSteps to solve
Medina 2
3. Use inverse of addition or subtraction
You may not have to do all the steps to solve the equation“You know you are done solving
when there is a positive 1 in front of the variable.”
4. Use inverse of multiplication or division
1. Use distributive property
2. Combine like terms
get the letter by itself variabl
e
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Solving Equations with Algorithm Solving Equations with Algorithm
Medina 3
To Solve:
8 5 16 8x x
16
x
16
8
Original problem
Subtract 16 from both sides
Check answer
Combine like terms
3x
3x
24-3 3
Divide both sides
by 3
1
16 8
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Solving Equations with Algorithm Solving Equations with Algorithm
Medina 4
Check:
8 8
8x -
8 5 16 8x x
8-
3 16 8x 3 16 8
24 16 8
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Solving Equations with Algorithm Solving Equations with Algorithm
Medina 5
To Solve:
9 5 6 14x x
30
x
30
4
Original problem
Add 30 to both sides
Check answer
Combine like terms
4x
4x
164 4
Divide both sides
by 41
9 14x Distributive Property 5x 30 30 14
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Solving Equations with Algorithm Solving Equations with Algorithm
Medina 6
Check:
14 14
4x
9 5 6 14x x
4 4 30 14x
4 30 14
16 30 14
9 5 30 14x x