-140=-7(6+2x)

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Solution for -140=-7(6+2x) equation: 



-140=-7(6+2x)

We move all terms to the left:

-140-(-7(6+2x))=0

We add all the numbers together, and all the variables

-(-7(2x+6))-140=0



We calculate terms in parentheses: -(-7(2x+6)), so:

-7(2x+6)

We multiply parentheses

-14x-42

Back to the equation:

-(-14x-42)



We get rid of parentheses

14x+42-140=0

We add all the numbers together, and all the variables

14x-98=0

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

14x=98

x=98/14

x=7

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