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12-11-2020
Mathematics

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2x+7y=4 −2x−8y =−2

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unicorn4everlover101 unicorn4everlover101

12-11-2020

Answer:

-y = 2.

Step-by-step explanation:

2x + 7y= 4

- 2x – 8y = -2

Adding we eliminate x because 2x + -2x = 0:-

0 - y = 4 + -2

-y = 2.

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