(r+6)2=15

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Solution for (r+6)2=15 equation: 



(r+6)2=15

We move all terms to the left:

(r+6)2-(15)=0

We multiply parentheses

2r+12-15=0

We add all the numbers together, and all the variables

2r-3=0

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

2r=3

r=3/2

r=1+1/2

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