.4x+3.9=5.78-1.6x

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Solution for .4x+3.9=5.78-1.6x equation: 



.4x+3.9=5.78-1.6x

We move all terms to the left:

.4x+3.9-(5.78-1.6x)=0

We add all the numbers together, and all the variables

.4x-(-1.6x+5.78)+3.9=0

We get rid of parentheses

.4x+1.6x-5.78+3.9=0

We add all the numbers together, and all the variables

2x-1.88=0

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

2x=1.88

x=1.88/2

x=1/1.063829787234

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