20-05-2021
Mathematics

contestada

Solve the following system of equations using elimination:
-x+5y=8
And
3x+7y=-2

Respuesta :

Yang100 Yang100

21-05-2021

Answer:

x=-3, y=1. (-3, 1).

Step-by-step explanation:

-x+5y=8

3x+7y=-2

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

3(-x+5y)=3(8)

3x+7y=-2

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

-3x+15y=24

3x+7y=-2

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

22y=22

y=22/22

y=1

-x+5(1)=8

-x+5=8

-x=8-5

-x=3

x=-3

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