SOLUTION: The sum of three times the number and a second number is one. The difference of the first number minus the second number is seven. Find these numbers.

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Question 430872: The sum of three times the number and a second number is one. The difference of the first number minus the second number is seven. Find these numbers.
Answer by lwsshak3(6460) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of three times the number and a second number is one. The difference of the first number minus the second number is seven. Find these numbers
..
let x=first number
let y=second number
3x+y=1
x-y=7
y=x-7
3x+x-7=1
4x=8
x=2
y=x-7=2-7=-5
ans:
numbers are: 2 and -5