4 -2 Solving Addition and Subtraction Equations (pgs 156 - 159)

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4 -2Solving Addition and Subtraction Equations
(pgs 156 - 159)

• Standard Patterns, Functions and Algebra
• Indicators P9 Recognize a variety of uses for
  variables represent the equation-solving process

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Important Steps to Remember!

• Your goal for every equation
• Use the
• (or opposite operation)
• Keep the equation
• Show every

• To Isolate the variable
• Inverse operation
• Balanced
• Step!

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• Example
• Although it seems easy be sure to keep your
  equation balanced and always show that work!

x 3 - 4 -3 -
3
- 7
X
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• More Examples
• 1) w - 4.6 -10.3
• 4.6 4.6
• w - 5.7
• y 3/4 5/8
• - 3/4 -3/4
• y -1/8

(-6/8)
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Homework
4-2 Pg. 158-159 4-10 All 12-28 Even 41-42