140=7(4-8x)

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Solution for 140=7(4-8x) equation: 



140=7(4-8x)

We move all terms to the left:

140-(7(4-8x))=0

We add all the numbers together, and all the variables

-(7(-8x+4))+140=0



We calculate terms in parentheses: -(7(-8x+4)), so:

7(-8x+4)

We multiply parentheses

-56x+28

Back to the equation:

-(-56x+28)



We get rid of parentheses

56x-28+140=0

We add all the numbers together, and all the variables

56x+112=0

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

56x=-112

x=-112/56

x=-2

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