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Aleksandr [31]
3 years ago
9

If x+y=2 and x-y=1 then:

Mathematics
1 answer:
vivado [14]3 years ago
8 0
X + y = 2

x - y = 1 

Adding the equations,

x + y + x - y = 2 + 1

2x = 3

x = \frac{3}{2}

x + y = 2

y = 2 - x

y = 2 - \frac{3}{2} =  \frac{4-3}{2} =  \frac{1}{2}

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