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Sholpan [36]
2 years ago
9

Joe bought some CD's and DVD's at the store.

Mathematics
1 answer:
Elina [12.6K]2 years ago
7 0

Answer: x=8 and y=4

Step-by-step explanation:

x+y=12           x=12-y                     x=12-4

14x+22y=200                                x=8

14(12-y)+22y=200

168-14y+22y=200

-168                 -168

-14y+22y=32

8y=32

8y/8=32/8

y=4

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