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24 February, 21:28

When solving the equation 4 (3x+2) - 9=8x+7, Emily wrote 4 (3x+2) = 8x+16 as her first step. Which property justifies Emily's first step

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  1. 24 February, 21:42
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    The Addition Property of Equality justifies Emily's first step. She added 9 to both sides, canceling out the minus 9 while keeping the equation equal.
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