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4 -2 Solving Addition and Subtraction Equations (pgs 156 - 159). Standard: Patterns, Functions and Algebra Indicators: P9: Recognize a variety of uses for variables; r epresent the equation-solving process. Your goal for every equation… Use the… (or opposite operation)
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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
Your goal for every equation… Use the… (or opposite operation) Keep the equation… Show every… To Isolate the variable Inverse operation Balanced Step! Important Steps to Remember!
Example… • Although it seems easy… be sure to keep your equation balanced and always show that work! x + 3 = - 4 -3 - 3 - 7 X =
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)