18-7r=12r-14r-12

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Solution for 18-7r=12r-14r-12 equation: 



18-7r=12r-14r-12

We move all terms to the left:

18-7r-(12r-14r-12)=0

We add all the numbers together, and all the variables

-7r-(-2r-12)+18=0

We get rid of parentheses

-7r+2r+12+18=0

We add all the numbers together, and all the variables

-5r+30=0

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

-5r=-30

r=-30/-5

r=+6

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