5(x-7)=21

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Solution for 5(x-7)=21 equation: 



5(x-7)=21

We move all terms to the left:

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

We multiply parentheses

5x-35-21=0

We add all the numbers together, and all the variables

5x-56=0

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

5x=56

x=56/5

x=11+1/5

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