13=2r+5

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Solution for 13=2r+5 equation:



13=2r+5
We move all terms to the left:
13-(2r+5)=0
We get rid of parentheses
-2r-5+13=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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