20r-15=4r+1

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Solution for 20r-15=4r+1 equation: 



20r-15=4r+1

We move all terms to the left:

20r-15-(4r+1)=0

We get rid of parentheses

20r-4r-1-15=0

We add all the numbers together, and all the variables

16r-16=0

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

16r=16

r=16/16

r=1

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