Question

a
(iii) 13x-9y=1
11x-12y=14​

Answer 1

Answer:

13x-9y=1 ---1)

11x-12y=14 ----2)

multiply eq 1 by 4 and eq 2 by 3

then subtract eq2 from eq 1

weget..

52x-36y=4

- 33x-36y=42

19x=38

x=2

now put value of x in eq 1

we get..

52×2-36y=4

100=36y

y=100/36 =25/9