125=105-2.5x+3x

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Solution for 125=105-2.5x+3x equation: 



125=105-2.5x+3x

We move all terms to the left:

125-(105-2.5x+3x)=0

We add all the numbers together, and all the variables

-(0.5x+105)+125=0

We get rid of parentheses

-0.5x-105+125=0

We add all the numbers together, and all the variables

-0.5x+20=0

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

-0.5x=-20

x=-20/-0.5

x=+40

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