9=-3(-5x+7)

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Solution for 9=-3(-5x+7) equation: 



9=-3(-5x+7)

We move all terms to the left:

9-(-3(-5x+7))=0



We calculate terms in parentheses: -(-3(-5x+7)), so:

-3(-5x+7)

We multiply parentheses

15x-21

Back to the equation:

-(15x-21)



We get rid of parentheses

-15x+21+9=0

We add all the numbers together, and all the variables

-15x+30=0

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

-15x=-30

x=-30/-15

x=+2

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