90=4+2x

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Solution for 90=4+2x equation: 



90=4+2x

We move all terms to the left:

90-(4+2x)=0

We add all the numbers together, and all the variables

-(2x+4)+90=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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