2r-9=4r+5

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Solution for 2r-9=4r+5 equation: 



2r-9=4r+5

We move all terms to the left:

2r-9-(4r+5)=0

We get rid of parentheses

2r-4r-5-9=0

We add all the numbers together, and all the variables

-2r-14=0

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

-2r=14

r=14/-2

r=-7

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