3(x+3)=13(x-7)

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Solution for 3(x+3)=13(x-7) equation: 



3(x+3)=13(x-7)

We move all terms to the left:

3(x+3)-(13(x-7))=0

We multiply parentheses

3x-(13(x-7))+9=0



We calculate terms in parentheses: -(13(x-7)), so:

13(x-7)

We multiply parentheses

13x-91

Back to the equation:

-(13x-91)



We get rid of parentheses

3x-13x+91+9=0

We add all the numbers together, and all the variables

-10x+100=0

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

-10x=-100

x=-100/-10

x=+10

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