1234cordelianaranjo 1234cordelianaranjo

15-08-2017
Mathematics

contestada

how do you solve this?
-x+y=7
6x+y=14

Respuesta :

kphung76127 kphung76127

16-08-2017

Multiply the first equation by -1 to use elimination method.

x-y=-7
6x+y=14

7x=7
x=1

Plug this x value in.

-1+y=7
y=8

Final answer: (1,8)

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