2.5x+0.4=7.9

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Solution for 2.5x+0.4=7.9 equation: 



2.5x+0.4=7.9

We move all terms to the left:

2.5x+0.4-(7.9)=0

We add all the numbers together, and all the variables

2.5x-7.5=0

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

2.5x=7.5

x=7.5/2.5

x=3

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