4x+0.4=8.4

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Solution for 4x+0.4=8.4 equation: 



4x+0.4=8.4

We move all terms to the left:

4x+0.4-(8.4)=0

We add all the numbers together, and all the variables

4x-8=0

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

4x=8

x=8/4

x=2

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