Question

x + y = 18
x - y = 6
Find x and y​

Answer 1

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x + y = 18

x - y = 6

Adding

2x = 24

x=12

x+y=18

12+y=18

y=6

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Answer 2

Answer:

By adding both equations

2x=24

x=12

12+y=18

y=6