x+7.8=20.42

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Solution for x+7.8=20.42 equation: 



x+7.8=20.42

We move all terms to the left:

x+7.8-(20.42)=0

We add all the numbers together, and all the variables

x-12.62=0

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

x=12.62

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