13=5r-12

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Solution for 13=5r-12 equation:



13=5r-12
We move all terms to the left:
13-(5r-12)=0
We get rid of parentheses
-5r+12+13=0
We add all the numbers together, and all the variables
-5r+25=0
We move all terms containing r to the left, all other terms to the right
-5r=-25
r=-25/-5
r=+5

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