The sum of 3 number is 80. the third number is 3 times the first. the first number is 5 less the second. what are the numbers

By: USER2668
26 Agustus 2025 mathematics 5 minutes
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Question

Grade: Education Subject: mathematics
The sum of 3 number is 80. the third number is 3 times the first. the first number is 5 less the second. what are the numbers
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Best Answer
(164)
1st number = x-5
2nd number = x
3rd number = 3x-15
Total = 80
x-5+x+3x-15=80
5x-20=80
5x=100
x=20
The numbers are 20, 15, 45
Answered on 26 Agustus 2025

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