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Answer:
50 and 28
Explanation:
x+y=78
x-y=22
to find this, subtract 22 from 78 to get 56
divide 56 by 2 to get 28
y=28
add 22 to 28 to get 50
x=50
to double check add 50 and 28 to get 78
also subtract 28 from 50 to get 22
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