-78=-5(5+4x)-3(7-4x)

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Solution for -78=-5(5+4x)-3(7-4x) equation: 



-78=-5(5+4x)-3(7-4x)

We move all terms to the left:

-78-(-5(5+4x)-3(7-4x))=0

We add all the numbers together, and all the variables

-(-5(4x+5)-3(-4x+7))-78=0



We calculate terms in parentheses: -(-5(4x+5)-3(-4x+7)), so:

-5(4x+5)-3(-4x+7)

We multiply parentheses

-20x+12x-25-21

We add all the numbers together, and all the variables

-8x-46

Back to the equation:

-(-8x-46)



We get rid of parentheses

8x+46-78=0

We add all the numbers together, and all the variables

8x-32=0

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

8x=32

x=32/8

x=4

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