90=2x+x+20+50

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Solution for 90=2x+x+20+50 equation: 



90=2x+x+20+50

We move all terms to the left:

90-(2x+x+20+50)=0

We add all the numbers together, and all the variables

-(3x+70)+90=0

We get rid of parentheses

-3x-70+90=0

We add all the numbers together, and all the variables

-3x+20=0

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

-3x=-20

x=-20/-3

x=6+2/3

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