-2.72=-0.42r

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Solution for -2.72=-0.42r equation: 



-2.72=-0.42r

We move all terms to the left:

-2.72-(-0.42r)=0

We get rid of parentheses

0.42r-2.72=0

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

0.42r=2.72

r=2.72/0.42

r=6+0.2/0.42

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