The sum of two numbers is 72.One number is 3 more the other number.Find the number?

The sum of two numbers is 72.One number is 3 more the other number.Find the number?
related to an answer for: what is the soulotion x+y=3, y=-x-1
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2 Answers

x+y=72   & y=x+3

2x+3=72

2x=69

x=69/2=34.5
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how   y=x+3 ............asking to man who anser 1St?
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