0.8r+15.89=12r+17.71-10.5r

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Solution for 0.8r+15.89=12r+17.71-10.5r equation: 



0.8r+15.89=12r+17.71-10.5r

We move all terms to the left:

0.8r+15.89-(12r+17.71-10.5r)=0

We add all the numbers together, and all the variables

0.8r-(1.5r+17.71)+15.89=0

We get rid of parentheses

0.8r-1.5r-17.71+15.89=0

We add all the numbers together, and all the variables

-0.7r-1.82=0

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

-0.7r=1.82

r=1.82/-0.7

r=-2+0.42/0.7

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