15-2(r+5)=13

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Solution for 15-2(r+5)=13 equation: 



15-2(r+5)=13

We move all terms to the left:

15-2(r+5)-(13)=0

We add all the numbers together, and all the variables

-2(r+5)+2=0

We multiply parentheses

-2r-10+2=0

We add all the numbers together, and all the variables

-2r-8=0

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

-2r=8

r=8/-2

r=-4

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