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Aleksandr [31]
4 years ago
6

The sum of two numbers is 51 and the difference is 29 . what are the numbers?

Mathematics
1 answer:
sladkih [1.3K]4 years ago
8 0
X+y=51
x-y=29

add equations
x+y=51
<u>x-y=29 +</u>
2x+0y=80

2x=80
divide 2
x=40
sub
x+y=51
40+y=51
y=11


they are 40 and 11
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