-3(-3x+7)=7(-4x-9)

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Solution for -3(-3x+7)=7(-4x-9) equation: 



-3(-3x+7)=7(-4x-9)

We move all terms to the left:

-3(-3x+7)-(7(-4x-9))=0

We multiply parentheses

9x-(7(-4x-9))-21=0



We calculate terms in parentheses: -(7(-4x-9)), so:

7(-4x-9)

We multiply parentheses

-28x-63

Back to the equation:

-(-28x-63)



We get rid of parentheses

9x+28x+63-21=0

We add all the numbers together, and all the variables

37x+42=0

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

37x=-42

x=-42/37

x=-1+5/37

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