4r+2r+4=5r-5

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Solution for 4r+2r+4=5r-5 equation: 



4r+2r+4=5r-5

We move all terms to the left:

4r+2r+4-(5r-5)=0

We add all the numbers together, and all the variables

6r-(5r-5)+4=0

We get rid of parentheses

6r-5r+5+4=0

We add all the numbers together, and all the variables

r+9=0

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

r=-9

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