9r+4=7

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Solution for 9r+4=7 equation: 



9r+4=7

We move all terms to the left:

9r+4-(7)=0

We add all the numbers together, and all the variables

9r-3=0

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

9r=3

r=3/9

r=1/3

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