9r-5r+4=7r+4-r

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Solution for 9r-5r+4=7r+4-r equation:



9r-5r+4=7r+4-r
We move all terms to the left:
9r-5r+4-(7r+4-r)=0
We add all the numbers together, and all the variables
9r-5r-(6r+4)+4=0
We add all the numbers together, and all the variables
4r-(6r+4)+4=0
We get rid of parentheses
4r-6r-4+4=0
We add all the numbers together, and all the variables
-2r=0
r=0/-2
r=0

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