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

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



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

We move all terms to the left:

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

We multiply parentheses

63x-(-7(-5x-7))+21=0



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

-7(-5x-7)

We multiply parentheses

35x+49

Back to the equation:

-(35x+49)



We get rid of parentheses

63x-35x-49+21=0

We add all the numbers together, and all the variables

28x-28=0

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

28x=28

x=28/28

x=1

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