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OpenStudy (animelover91804):
Use the distributive property to solve for the unknown value: 3(a+ 7) = 3* (-1) + 3 * 7
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OpenStudy (anonymous):
3a+21= -3+3x7 3a+21= -3+21 3a+21= 18 -21 -21 3a=-3 /3 /3 a= -1 I think this is right......
OpenStudy (animelover91804):
♥ Thanks chu!!!!!!!!! ♥
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