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3 years ago

7

X + Y = 3,500 X - Y = 2,342

1 answer:

LUCKY_DIMON [66]3 years ago

8 0

X + y = 3500 -------------- (1)
x - y = 2342 --------------- (2)

(1) + (2):
2x = 5842
x = 2921 -------------- Sub into (1)
x+ y = 3500
2921 + y = 3500
y = 3500 - 2921
y = 579

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Answer: x = 2921, y = 579
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