15-4r=11

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Solution for 15-4r=11 equation: 



15-4r=11

We move all terms to the left:

15-4r-(11)=0

We add all the numbers together, and all the variables

-4r+4=0

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

-4r=-4

r=-4/-4

r=1

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