6(x+7)=-6(3x+4)=9x

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Solution for 6(x+7)=-6(3x+4)=9x equation: 



6(x+7)=-6(3x+4)=9x

We move all terms to the left:

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

We multiply parentheses

6x-(-6(3x+4))+42=0



We calculate terms in parentheses: -(-6(3x+4)), so:

-6(3x+4)

We multiply parentheses

-18x-24

Back to the equation:

-(-18x-24)



We get rid of parentheses

6x+18x+24+42=0

We add all the numbers together, and all the variables

24x+66=0

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

24x=-66

x=-66/24

x=-2+3/4

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