Answer:
18, 23 and 69
Explanation:
Let x, y and z be the 3 numbers we are looking for.
● x + y + z = 110
z is 3 times y (z = 3y)
● x + y + 3y = 110
x is 5 less than y ( x = y -5)
● y-5 + y + 3y = 110
● 5y -5 = 110
Add 5to both sides
● 5y + 5 -5 = 110+5
● 5y = 115
Divide both sides by 5
● 5y/5 = 115/5
● y = 23
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we have found that y = 23
● z = 3y
● z = 3×23
● z = 69
● x = y-5
● x = 23-5
● x = 18