-1.28+3.99=x

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Solution for -1.28+3.99=x equation: 



-1.28+3.99=x

We move all terms to the left:

-1.28+3.99-(x)=0

We add all the numbers together, and all the variables

-1x+2.71=0

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

-x=-2.71

x=-2.71/-1

x=2+0.71/1

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