-90=2(4+7x)

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Solution for -90=2(4+7x) equation: 



-90=2(4+7x)

We move all terms to the left:

-90-(2(4+7x))=0

We add all the numbers together, and all the variables

-(2(7x+4))-90=0



We calculate terms in parentheses: -(2(7x+4)), so:

2(7x+4)

We multiply parentheses

14x+8

Back to the equation:

-(14x+8)



We get rid of parentheses

-14x-8-90=0

We add all the numbers together, and all the variables

-14x-98=0

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

-14x=98

x=98/-14

x=-7

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