Question

solve:
x+y=7, 2x-3y=9​

Answer 1

Answer:

I hope this will help you.

Answer 2

Answer:

x=7-y

substitute x=7-y in 2x-3y=9

2×7-y-3y=9

14-2y-3y=9

14-5y=9

y=9-14/5

y=-5/5

y=-1

substitute y =-1 in x+y=7

x-1=7

x=8

answer

y=-1

x=8