12-8.5=x

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Solution for 12-8.5=x equation: 



12-8.5=x

We move all terms to the left:

12-8.5-(x)=0

We add all the numbers together, and all the variables

-1x+3.5=0

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

-x=-3.5

x=-3.5/-1

x=3+0.5/1

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