x + y = 23
x - y = 7
Add the equations:
2x = 30
x = 15
Subtract the equations:
2y = 16
y = 8
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29 and 36
6 & 4
37 and 21
Find the 2 numbers whose difference is two and whose sum is 480.
1 and 0 are the two whole numbers with their sum same as their difference