0.4x-3.9=-1.9

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Solution for 0.4x-3.9=-1.9 equation: 



0.4x-3.9=-1.9

We move all terms to the left:

0.4x-3.9-(-1.9)=0

We add all the numbers together, and all the variables

0.4x-2=0

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

0.4x=2

x=2/0.4

x=5

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