-84=-4(1+5x)

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Solution for -84=-4(1+5x) equation: 



-84=-4(1+5x)

We move all terms to the left:

-84-(-4(1+5x))=0

We add all the numbers together, and all the variables

-(-4(5x+1))-84=0



We calculate terms in parentheses: -(-4(5x+1)), so:

-4(5x+1)

We multiply parentheses

-20x-4

Back to the equation:

-(-20x-4)



We get rid of parentheses

20x+4-84=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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