3(5x+7)=21

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Solution for 3(5x+7)=21 equation:



3(5x+7)=21
We move all terms to the left:
3(5x+7)-(21)=0
We multiply parentheses
15x+21-21=0
We add all the numbers together, and all the variables
15x=0
x=0/15
x=0

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