2x+0.4=0.8x+4

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Solution for 2x+0.4=0.8x+4 equation: 



2x+0.4=0.8x+4

We move all terms to the left:

2x+0.4-(0.8x+4)=0

We get rid of parentheses

2x-0.8x-4+0.4=0

We add all the numbers together, and all the variables

1.2x-3.6=0

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

1.2x=3.6

x=3.6/1.2

x=3+4.4408920985006E-16/1.2

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