Question

Solve the following pairs of equations by
cross multiplication method.
9x +5y=7, 6x-y=22​

Answer 1

Answer:

9x+5y=7....(1)

6x-y=22....(2)

equqtion no. (2)ko 5 se multiply karne per...

30x-5y=110....(3)

equation no. (1) ko (3) se minus karne per..

30x-5y=110

9x+5y=. 7

39x. =117

x. =117/39

x. =3

x=3 equation no. (1) me rakhne per

9x+5y=7

9×3+4y=7

27+5y=7

5y=7-27

5y= -20

y= -20/5

y= -4

so...

x=3. ,. y= -4