12.9=2.5x

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Solution for 12.9=2.5x equation: 



12.9=2.5x

We move all terms to the left:

12.9-(2.5x)=0

We add all the numbers together, and all the variables

-(+2.5x)+12.9=0

We get rid of parentheses

-2.5x+12.9=0

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

-2.5x=-12.9

x=-12.9/-2.5

x=5+0.4/2.5

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