SOLUTION: The sum of three number is 75. The second is 5 more than the first, and the third is three times the second. what are the three number?

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Question 224772: The sum of three number is 75. The second is 5 more than the first, and the third is three times the second. what are the three number?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x+y+z=75
y=x+5
z=3y
x+(x+5)+3(x+5)=75
x+x+5+3x+15=75
5x=75-15-5
5x=55
x=55/5
x=11 ans.
y=11+5=16 ans.
z=3*16
z=48 ans.
Proof:
11+16+48=75
75=75