-7x-40=8(4-2x)

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Solution for -7x-40=8(4-2x) equation: 



-7x-40=8(4-2x)

We move all terms to the left:

-7x-40-(8(4-2x))=0

We add all the numbers together, and all the variables

-7x-(8(-2x+4))-40=0



We calculate terms in parentheses: -(8(-2x+4)), so:

8(-2x+4)

We multiply parentheses

-16x+32

Back to the equation:

-(-16x+32)



We get rid of parentheses

-7x+16x-32-40=0

We add all the numbers together, and all the variables

9x-72=0

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

9x=72

x=72/9

x=8

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