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30-07-2019
Mathematics

contestada

What is the result of adding these two
equations?
2x + 7y= 4
- 2x – 8y = -2

Respuesta :

Аноним Аноним

30-07-2019

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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