x-12.5=-20.4

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Solution for x-12.5=-20.4 equation: 



x-12.5=-20.4

We move all terms to the left:

x-12.5-(-20.4)=0

We add all the numbers together, and all the variables

x+7.9=0

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

x=-7.9

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