-90=2x-4

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Solution for -90=2x-4 equation: 



-90=2x-4

We move all terms to the left:

-90-(2x-4)=0

We get rid of parentheses

-2x+4-90=0

We add all the numbers together, and all the variables

-2x-86=0

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

-2x=86

x=86/-2

x=-43

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