7(9x-7)=21

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Solution for 7(9x-7)=21 equation: 



7(9x-7)=21

We move all terms to the left:

7(9x-7)-(21)=0

We multiply parentheses

63x-49-21=0

We add all the numbers together, and all the variables

63x-70=0

We move all terms containing x to the left, all other terms to the right

63x=70

x=70/63

x=1+1/9

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