Question

3x-5y=4,2y+7=9x by substitution method for class 10​

Answer 1

Answer:

3x-5y=4..........(1)

9x-2y=7..........(2)

from (1) we get

x=4+5y/3

putting the value in 2

9(4+5y/3)-2y=7

36+45y/3-2y = 7

36+45y-6y = 21

39y = 21-36

39y = -15

y = -15/39

hope it helped you