r-87=-r-5

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Solution for r-87=-r-5 equation: 



r-87=-r-5

We move all terms to the left:

r-87-(-r-5)=0

We add all the numbers together, and all the variables

r-(-1r-5)-87=0

We get rid of parentheses

r+1r+5-87=0

We add all the numbers together, and all the variables

2r-82=0

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

2r=82

r=82/2

r=41

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