.50x+.20=3.9

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Solution for .50x+.20=3.9 equation: 



.50x+.20=3.9

We move all terms to the left:

.50x+.20-(3.9)=0

We add all the numbers together, and all the variables

.50x-3.7=0

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

.50x=3.7

x=3.7/.50

x=7+0.2/.50

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