20=r+1120=r+

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Solution for 20=r+1120=r+ equation: 



20=r+1120=r+

We move all terms to the left:

20-(r+1120)=0

We get rid of parentheses

-r-1120+20=0

We add all the numbers together, and all the variables

-1r-1100=0

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

-r=1100

r=1100/-1

r=-1100

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