.4r-15=r-10.8

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Solution for .4r-15=r-10.8 equation: 



.4r-15=r-10.8

We move all terms to the left:

.4r-15-(r-10.8)=0

We get rid of parentheses

.4r-r+10.8-15=0

We add all the numbers together, and all the variables

-0.6r-4.2=0

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

-0.6r=4.2

r=4.2/-0.6

r=-7

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