.3r+.7=3.1

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Solution for .3r+.7=3.1 equation: 



.3r+.7=3.1

We move all terms to the left:

.3r+.7-(3.1)=0

We add all the numbers together, and all the variables

.3r-2.4=0

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

.3r=2.4

r=2.4/.3

r=8

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