Question

x+2y=-1
2x-3y =12
2)s-t=3
5/3+t/2=6
slove by substution method​
fast friends pls

Answer 1

Step-by-step explanation:

1.) x+2y=-1.....(1)

2x-3y=12.....(2)

From (1),x=-1-2y

Put x in (2)

2(-1-2y)-3y=12

-2-4y-3y=12

-7y=14

y=-14/7=-2

x=-1-2(-2)=3