1.25x=90-x

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Solution for 1.25x=90-x equation: 



1.25x=90-x

We move all terms to the left:

1.25x-(90-x)=0

We add all the numbers together, and all the variables

1.25x-(-1x+90)=0

We get rid of parentheses

1.25x+1x-90=0

We add all the numbers together, and all the variables

2.25x-90=0

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

2.25x=90

x=90/2.25

x=40

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