lthompson3 lthompson3

10-12-2019
Mathematics

contestada

what is the elimination method for

x + y = -1
x - y = 19

Respuesta :

Yang100 Yang100

10-12-2019

Answer:

x=9, y=-10. (9, -10).

Step-by-step explanation:

x+y=-1

x-y=19

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

2x=18

x=18/2

x=9

9-y=19

y=9-19=-10

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