-140=-7(7x-1)

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Solution for -140=-7(7x-1) equation: 



-140=-7(7x-1)

We move all terms to the left:

-140-(-7(7x-1))=0



We calculate terms in parentheses: -(-7(7x-1)), so:

-7(7x-1)

We multiply parentheses

-49x+7

Back to the equation:

-(-49x+7)



We get rid of parentheses

49x-7-140=0

We add all the numbers together, and all the variables

49x-147=0

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

49x=147

x=147/49

x=3

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