-3+x=4.2

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Solution for -3+x=4.2 equation: 



-3+x=4.2

We move all terms to the left:

-3+x-(4.2)=0

We add all the numbers together, and all the variables

x-7.2=0

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

x=7.2

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