Question

(3) 2x - 3y = 9; 2x + y = 13​

Answer 1

2x - 3y = 9.........(i)

2x + y = 13.......(ii)

applying elimination method.....

2x - 3y= 9

2x + y = 13

___________

-4y=-4

=>Y=1

putting y=1 in equation (i)

2x- 3(1) = 9

=>2x=12

=>X=6

•••••hope this helps you••••

Answer 2

Answer:

$\: \: \: \: \: 2x - 3y = \: 9 \\ \: \: \: \: \: 2x + y \: \: = \: 13 \\ - \: \: \: \: \: \: \: - \: \: \: \: \: \: \: \: -$

________________

$- 4y = - 4$

$= > y = \frac{ - 4}{ - 4}$

$= > y = 1$

By Putting value of y :

$2x+y=13$

$=>2x+1=13$

$=>2x=13-1$

$=>2x=12$

$=>x=12/2$

$=>x=6$