0.15r+7.8=8.19

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Solution for 0.15r+7.8=8.19 equation: 



0.15r+7.8=8.19

We move all terms to the left:

0.15r+7.8-(8.19)=0

We add all the numbers together, and all the variables

0.15r-0.39=0

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

0.15r=0.39

r=0.39/0.15

r=2+0.09/0.15

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