1-3r=13

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Solution for 1-3r=13 equation:



1-3r=13
We move all terms to the left:
1-3r-(13)=0
We add all the numbers together, and all the variables
-3r-12=0
We move all terms containing r to the left, all other terms to the right
-3r=12
r=12/-3
r=-4

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