the sum of two numbers is 13 and there difference is 5 what are the 2 numbers?
Mathematics
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Question
the sum of two numbers is 13 and there difference is 5 what are the 2 numbers?
2 Answer

1. User Answers royalranger
x + y = 13
x  y = 5
x = (13  y)
(13y)  y = 5
13  2y = 5
2y = 8
y = 4
x  4 = 5
x = 9
x=9, y = 4 
2. User Answers apologiabiology
x+y=13
xy=5
we can addd these 2 equations to eliminate y
2x+0y=18
2x=18
divide both sides by 2
x=9
sub back
x+y=13
9+y=13
minus 9 both sides
y=4
the 2 numbers are 9 and 4