Question

2x-3y-4=0
3x-y-17=0
x-y=?

Answer 1

Answer:

2x - 3y = 4......... (1)

3x -y = 17 .......... (2)

multiply eqn. (2) by 3

3 (3x - y = 17)

9x - 3y = 54.........(3)

2x - 3y = 4

(-) -9x + 3y = -54

____________

-7x = 50

x = 50/7

Answer 2

Answer:

Step-by-step explanation:

2x-3y=4...(i)

3x-y=17...(ii)

on multiplying eqn. (i) by 3 and eqn.(ii) by 2 we get

6x-9y=12...(a)

6x-2y=34...(b)

on solving eqns. (a) & (b) we get ,

y=22/7 and again multiply eqn, (ii) by 3 we get ,

2x-3y=4...(c)

3x-3y=51...(d)

on solving eqn. (c)&(d) we get

x= -47.