x-12=3,5x

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Solution for x-12=3,5x equation: 



x-12=3.5x

We move all terms to the left:

x-12-(3.5x)=0

We add all the numbers together, and all the variables

x-(+3.5x)-12=0

We get rid of parentheses

x-3.5x-12=0

We add all the numbers together, and all the variables

-2.5x-12=0

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

-2.5x=12

x=12/-2.5

x=-4+1/1.25

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