40-8x=7x-5(8+7x)

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Solution for 40-8x=7x-5(8+7x) equation: 



40-8x=7x-5(8+7x)

We move all terms to the left:

40-8x-(7x-5(8+7x))=0

We add all the numbers together, and all the variables

-8x-(7x-5(7x+8))+40=0



We calculate terms in parentheses: -(7x-5(7x+8)), so:

7x-5(7x+8)

We multiply parentheses

7x-35x-40

We add all the numbers together, and all the variables

-28x-40

Back to the equation:

-(-28x-40)



We get rid of parentheses

-8x+28x+40+40=0

We add all the numbers together, and all the variables

20x+80=0

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

20x=-80

x=-80/20

x=-4

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