-15r=-12-16r

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Solution for -15r=-12-16r equation: 



-15r=-12-16r

We move all terms to the left:

-15r-(-12-16r)=0

We add all the numbers together, and all the variables

-15r-(-16r-12)=0

We get rid of parentheses

-15r+16r+12=0

We add all the numbers together, and all the variables

r+12=0

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

r=-12

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