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Simplify and select the answer with the appropriate restrictions for the variables. (x+3)(x+7)/3x+21

Simplify and select the answer with the appropriate restrictions for the variables. (x+3)(x+7)/3x+21
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Simplify and select the answer with the appropriate restrictions for the variables. (x+3)(x+7)/3x+21

User Gwenzek
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(x+3)(x+7)/3x+21 = (x+3)(x+7)/3(x+7) = (x+3)/3 when x is not equal to -7 otherwise you divide by 0
User Shizzle
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