2(r+4)=13

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Solution for 2(r+4)=13 equation: 



2(r+4)=13

We move all terms to the left:

2(r+4)-(13)=0

We multiply parentheses

2r+8-13=0

We add all the numbers together, and all the variables

2r-5=0

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

2r=5

r=5/2

r=2+1/2

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