Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m
B. 21 + m
C. 21 + 7m
D. 21 + 3m
Answer: D
Mathematics
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= 
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= 
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A. 
B. 
C. 
D. 
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Fill in the blank with one of the words or phrases listed below. 
A(n) 
of an equation is a value for the variable that make an equation a true statement.
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Mathematics