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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

Sagot :

Emily added the nine over with 7 to get 16
[tex]4(3x+2)-9=8x+7\ \ \ \ \ |add\ 9 \to\ both\ sides\\\\4(3x+2)-9+9=8x+7+9\\\\\boxed{4(3x+2)=8x+16}\\\\Answer:Emily\ add\ 9\ to \both\ sides\ of\ the\ equation.[/tex]
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