140=-6x+7(-3x-7)

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Solution for 140=-6x+7(-3x-7) equation: 



140=-6x+7(-3x-7)

We move all terms to the left:

140-(-6x+7(-3x-7))=0



We calculate terms in parentheses: -(-6x+7(-3x-7)), so:

-6x+7(-3x-7)

We multiply parentheses

-6x-21x-49

We add all the numbers together, and all the variables

-27x-49

Back to the equation:

-(-27x-49)



We get rid of parentheses

27x+49+140=0

We add all the numbers together, and all the variables

27x+189=0

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

27x=-189

x=-189/27

x=-7

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