Question

-3x -10y = -20
-5x -6y = 20​

Answer 1

Explanation:

-3x -10y = -20..... (1)

-5x -6y = 20..... (2)

from 1. x=(20-10y)3

put in eq.2

5 (20-10y)/3+6y=-20

100-50y+18y=-60

160=32y

y=160/32

y=5

x=-10