-520=8(-8x+15)

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Solution for -520=8(-8x+15) equation: 



-520=8(-8x+15)

We move all terms to the left:

-520-(8(-8x+15))=0



We calculate terms in parentheses: -(8(-8x+15)), so:

8(-8x+15)

We multiply parentheses

-64x+120

Back to the equation:

-(-64x+120)



We get rid of parentheses

64x-120-520=0

We add all the numbers together, and all the variables

64x-640=0

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

64x=640

x=640/64

x=10

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