7+9r=151

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Solution for 7+9r=151 equation: 



7+9r=151

We move all terms to the left:

7+9r-(151)=0

We add all the numbers together, and all the variables

9r-144=0

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

9r=144

r=144/9

r=16

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