5.8r+3.72-18.9r=19.89-12r

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Solution for 5.8r+3.72-18.9r=19.89-12r equation: 



5.8r+3.72-18.9r=19.89-12r

We move all terms to the left:

5.8r+3.72-18.9r-(19.89-12r)=0

We add all the numbers together, and all the variables

5.8r-18.9r-(-12r+19.89)+3.72=0

We add all the numbers together, and all the variables

-13.1r-(-12r+19.89)+3.72=0

We get rid of parentheses

-13.1r+12r-19.89+3.72=0

We add all the numbers together, and all the variables

-1.1r-16.17=0

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

-1.1r=16.17

r=16.17/-1.1

r=-14+0.77/1.1

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