
Andy C. answered 10/07/18
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J + S = 80
J-10 = 2(S-10)
J = 2(S-10)+10 = 2s - 20+10 = 2s - 10
2s-10+s = 80
3s = 90
s=30
Josh is 50 and Shannon is 30.
10 years ago they were 40 and 20.