12+-1/5=2r+1

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Solution for 12+-1/5=2r+1 equation: 



12+-1/5=2r+1

We move all terms to the left:

12+-1/5-(2r+1)=0

We add all the numbers together, and all the variables

-(2r+1)-1/5=0

We get rid of parentheses

-2r-1-1/5=0

We multiply all the terms by the denominator


-2r*5-1-1*5=0

We add all the numbers together, and all the variables

-2r*5-6=0

Wy multiply elements

-10r-6=0

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

-10r=6

r=6/-10

r=-3/5

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