Question

x-5y=5
- 2x + 5y = -15​

Answer 1

Sistema de ecuaciones

X - 5Y = 5

-2X + 5Y = -15

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

-X = -10

X=10

Entonces

-5Y= 5-X

-5Y=5-10

-5Y=-5

-Y=-1

Y= 1