91=x-4+2x+5

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Solution for 91=x-4+2x+5 equation: 



91=x-4+2x+5

We move all terms to the left:

91-(x-4+2x+5)=0

We add all the numbers together, and all the variables

-(3x+1)+91=0

We get rid of parentheses

-3x-1+91=0

We add all the numbers together, and all the variables

-3x+90=0

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

-3x=-90

x=-90/-3

x=+30

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