-7*(x+3)-(-4*(x-6))=0

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Solution for -7*(x+3)-(-4*(x-6))=0 equation: 



-7(x+3)-(-4(x-6))=0

We multiply parentheses

-7x-(-4(x-6))-21=0



We calculate terms in parentheses: -(-4(x-6)), so:

-4(x-6)

We multiply parentheses

-4x+24

Back to the equation:

-(-4x+24)



We get rid of parentheses

-7x+4x-24-21=0

We add all the numbers together, and all the variables

-3x-45=0

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

-3x=45

x=45/-3

x=-15

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