-r+4.2=-8.8r-19.2

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Solution for -r+4.2=-8.8r-19.2 equation: 



-r+4.2=-8.8r-19.2

We move all terms to the left:

-r+4.2-(-8.8r-19.2)=0

We add all the numbers together, and all the variables

-1r-(-8.8r-19.2)+4.2=0

We get rid of parentheses

-1r+8.8r+19.2+4.2=0

We add all the numbers together, and all the variables

7.8r+23.4=0

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

7.8r=-23.4

r=-23.4/7.8

r=-3

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