solving one-step equations. word list variable term expression coefficient equation algebra
TRANSCRIPT
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Solving One-Step Equations
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Word List
variabletermexpressioncoefficientequationalgebra
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Types of Equations
Addition x + 5 = 15
Subtraction n – 3 = 7
Multiplication 2x = 14
Division n = 65
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Inverse Operations
To solve equations we use inverse operations.
Operation Inverse
Addition Subtraction
Subtraction Addition
Multiplication Division
Division Multiplication
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Solving addition equations
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x + 3 = 9 What type of equation is this?
What inverse operation
should you use?
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x + 3 = 9- -3= 3
Subtract 3 from both
sides of the
equation
x = 6
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Solving subtraction equations
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x - 8 = 12 What type of equation is this?
What inverse operation
should you use?
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x - 8 = 12 + 8 =
+8
Add 8 to both
sides of the
equation
x = 20
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Practice Problems
1) m – 4 = 92) 12 = s – 33) x – 7 = 214) 15 = r - 5
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Model magic
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Solving equationsIs all aboutBALANCE
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x +++
+++++
++
x =
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x++
+++
+
++
x =
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USE EACH KEY TO WRITE THE EQUATION REPRESENTED BY EACH PICTURE. THEN, SOLVE EACH EQUATION
What equation is modeled?
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= x
=1
Example:
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= x
=1
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= x
=1
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= x
=1
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= x
=1
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Four in a Row
FIND THE EQUATION BEING MODELED
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= x
= 1
Key
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= x
= 1
Key
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= x
= 1
Key
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