-0.4x+3.9=5.78

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Solution for -0.4x+3.9=5.78 equation: 



-0.4x+3.9=5.78

We move all terms to the left:

-0.4x+3.9-(5.78)=0

We add all the numbers together, and all the variables

-0.4x-1.88=0

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

-0.4x=1.88

x=1.88/-0.4

x=-4+0.28/0.4

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