90=7x+17+3x-20

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Solution for 90=7x+17+3x-20 equation: 



90=7x+17+3x-20

We move all terms to the left:

90-(7x+17+3x-20)=0

We add all the numbers together, and all the variables

-(10x-3)+90=0

We get rid of parentheses

-10x+3+90=0

We add all the numbers together, and all the variables

-10x+93=0

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

-10x=-93

x=-93/-10

x=9+3/10

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