0.4r+6.21=-4r-7.43

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Solution for 0.4r+6.21=-4r-7.43 equation: 



0.4r+6.21=-4r-7.43

We move all terms to the left:

0.4r+6.21-(-4r-7.43)=0

We get rid of parentheses

0.4r+4r+7.43+6.21=0

We add all the numbers together, and all the variables

4.4r+13.64=0

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

4.4r=-13.64

r=-13.64/4.4

r=-3+0.44/4.4

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