Answer:
23, 32, 69
Explanation:
3 numbers x, y, z
z = 3x
y = x + 9
x+y+z=124
x + (x + 9) + 3x = 124
5x + 9 = 124
5x = 115
x = 23
y = 32
z = 69
check: 23 + 32 + 69 = 124
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