9(x-7)=3(x-7)

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Solution for 9(x-7)=3(x-7) equation: 



9(x-7)=3(x-7)

We move all terms to the left:

9(x-7)-(3(x-7))=0

We multiply parentheses

9x-(3(x-7))-63=0



We calculate terms in parentheses: -(3(x-7)), so:

3(x-7)

We multiply parentheses

3x-21

Back to the equation:

-(3x-21)



We get rid of parentheses

9x-3x+21-63=0

We add all the numbers together, and all the variables

6x-42=0

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

6x=42

x=42/6

x=7

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