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  • 12-11-2020
  • Mathematics
contestada

2x+7y=4 −2x−8y =−2 ​

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unicorn4everlover101
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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