17-5r+9r=-12+-12+6r-1

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Solution for 17-5r+9r=-12+-12+6r-1 equation: 



17-5r+9r=-12+-12+6r-1

We move all terms to the left:

17-5r+9r-(-12+-12+6r-1)=0

We add all the numbers together, and all the variables

-5r+9r-(6r-25)+17=0

We add all the numbers together, and all the variables

4r-(6r-25)+17=0

We get rid of parentheses

4r-6r+25+17=0

We add all the numbers together, and all the variables

-2r+42=0

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

-2r=-42

r=-42/-2

r=+21

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