31=4r-5

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Solution for 31=4r-5 equation:



31=4r-5
We move all terms to the left:
31-(4r-5)=0
We get rid of parentheses
-4r+5+31=0
We add all the numbers together, and all the variables
-4r+36=0
We move all terms containing r to the left, all other terms to the right
-4r=-36
r=-36/-4
r=+9

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