2r+9=8+5r+9r

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Solution for 2r+9=8+5r+9r equation: 



2r+9=8+5r+9r

We move all terms to the left:

2r+9-(8+5r+9r)=0

We add all the numbers together, and all the variables

2r-(14r+8)+9=0

We get rid of parentheses

2r-14r-8+9=0

We add all the numbers together, and all the variables

-12r+1=0

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

-12r=-1

r=-1/-12

r=1/12

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