12.5-x=43

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Solution for 12.5-x=43 equation: 



12.5-x=43

We move all terms to the left:

12.5-x-(43)=0

We add all the numbers together, and all the variables

-1x-30.5=0

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

-x=30.5

x=30.5/-1

x=-30+0.5/1

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