Question

1.
8х + бу = 9
3х + 2y = 4​

Answer 1

Answer:

8x+6y=9........i

3x+2y=4........ii

on multiplying (ii) by 3 we get

9x+6y=12

and now subtract ii from i

we get

-x = -3

x=3

putting the value in ii we get

9+2y=4

y=-5/2

Answer 2

Answer:

8x+6y=9......eq1

3x+2y=4......eq2

now multiply eq 2nd by 3

(3x+2y=4)3

9x+6y=12....eq3

now subtract eq1st by eq3rd

9x+6y=12

8x+6y=9

- - -

x =3.....eq4

now put eq4 in eq 2nd

3x+2y=4

3(3)+2y=4

9+2y=4

2y=4-9

2y=-5

y=-5/2