Question

solve 9x+4y=24 ; x-y=7of equation by any method​

Answer 1

Answer:

ANSWER

9x−4y=8 -------- (i)

13x+7y=101 --------(ii)

Multiplying equation (i) by 7 and (ii) by 4 and subtracting we get,

63x−28y=56 --------(iii)

52x−28y=404 --------(iv)

115x=460

x=

115

460

x=4

Putting the value of x in (i) we get,

9(4)−4y=8

→36−4y=8

→−4y=8−36

→−4y=−28

→y=

$\frac{4}{28}$

→y=7

Answer 2

refer the attachment

hope it helps