-3.1x+3=7.8

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Solution for -3.1x+3=7.8 equation: 



-3.1x+3=7.8

We move all terms to the left:

-3.1x+3-(7.8)=0

We add all the numbers together, and all the variables

-3.1x-4.8=0

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

-3.1x=4.8

x=4.8/-3.1

x=-1+1/1.8235294117647

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