90=7x-1+4x+3

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Solution for 90=7x-1+4x+3 equation: 



90=7x-1+4x+3

We move all terms to the left:

90-(7x-1+4x+3)=0

We add all the numbers together, and all the variables

-(11x+2)+90=0

We get rid of parentheses

-11x-2+90=0

We add all the numbers together, and all the variables

-11x+88=0

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

-11x=-88

x=-88/-11

x=+8

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