3r+4r-5=51

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Solution for 3r+4r-5=51 equation: 



3r+4r-5=51

We move all terms to the left:

3r+4r-5-(51)=0

We add all the numbers together, and all the variables

7r-56=0

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

7r=56

r=56/7

r=8

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