12.4+x=-65.4

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Solution for 12.4+x=-65.4 equation: 



12.4+x=-65.4

We move all terms to the left:

12.4+x-(-65.4)=0

We add all the numbers together, and all the variables

x+77.8=0

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

x=-77.8

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