6.4=0.4r=

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Solution for 6.4=0.4r= equation: 



6.4=0.4r=

We move all terms to the left:

6.4-(0.4r)=0

We add all the numbers together, and all the variables

-(+0.4r)+6.4=0

We get rid of parentheses

-0.4r+6.4=0

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

-0.4r=-6.4

r=-6.4/-0.4

r=+16

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