yaremal1224 yaremal1224

19-12-2019
Mathematics

contestada

What is the results of adding these two equations?
6x+2y=-2
3x-2y=-5

Respuesta :

Yang100 Yang100

19-12-2019

Answer:

x=-7/9, y=4/3. (-7/9, 4/3).

Step-by-step explanation:

6x+2y=-2

3x-2y=-5

-----------------

9x=-7

x=-7/9

6(-7/9)+2y=-2

-42/9+2y=-2

2y=-2-(-42/9)

2y=-2+42/9

2y=-18/9+42/9

2y=24/9

y=(24/9)/2

y=(24/9)(1/2)

y=24/18

y=4/3

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