2r+1.3=3.9

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Solution for 2r+1.3=3.9 equation:



2r+1.3=3.9
We move all terms to the left:
2r+1.3-(3.9)=0
We add all the numbers together, and all the variables
2r-2.6=0
We move all terms containing r to the left, all other terms to the right
2r=2.6
r=2.6/2
r=1+0.6/2

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