-9(x-1)=-7(x+3)

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Solution for -9(x-1)=-7(x+3) equation: 



-9(x-1)=-7(x+3)

We move all terms to the left:

-9(x-1)-(-7(x+3))=0

We multiply parentheses

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



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

-7(x+3)

We multiply parentheses

-7x-21

Back to the equation:

-(-7x-21)



We get rid of parentheses

-9x+7x+21+9=0

We add all the numbers together, and all the variables

-2x+30=0

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

-2x=-30

x=-30/-2

x=+15

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