90+2x-40=3x+30

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Solution for 90+2x-40=3x+30 equation: 



90+2x-40=3x+30

We move all terms to the left:

90+2x-40-(3x+30)=0

We add all the numbers together, and all the variables

2x-(3x+30)+50=0

We get rid of parentheses

2x-3x-30+50=0

We add all the numbers together, and all the variables

-1x+20=0

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

-x=-20

x=-20/-1

x=+20

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