3(r-6) +2 = 4(r+2) -21
3r - 6r +2 = 4r +8 -21
-3r +2 = 4r -13
2 = 7r -13
15 = 7r
r =
r = 7.5
3r - 6r +2 = 4r +8 -21
-3r +2 = 4r -13
2 = 7r -13
15 = 7r
r =
r = 7.5
The mean of three numbers is 10 more than the least of the numbers and 15 less than the greatest. The median of the three number
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