the sum of two numbers is 15. if one number is subtracted from the other, the result is 1. Find the numbers
x + y = 15
x - y = 1
Add the two equations.
x + y = 15
+(x - y = 1)
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2x = 16
2x = 16
x = 8
x + y = 15
8 + y = 15
y = 7
The numbers are 8 and 7