21.3+r=(-19.79)

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Solution for 21.3+r=(-19.79) equation: 



21.3+r=(-19.79)

We move all terms to the left:

21.3+r-((-19.79))=0

We add all the numbers together, and all the variables

r+41.09=0

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

r=-41.09

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