Question

5x + 3y = 9 -----(I)
2x
3y = 12
- (II)​

Answer 1

Answer:

-6/5

Step-by-step explanation:

y=12/3=4

5x+3y=9

5x+3*4=9

5x=9-12

x=-3/5

2x=-3/5*2=-6/5

Answer 2

Answer:

There is error in the Q. In (II) there should have been 2x - 3y = 12

5x + 3y = 9 -----(I)

2x - 3y = 12 ----- (II)

Add (I) and (II)

7x = 21

x = 3

Putting the value of x = 3 in (I) we get

5(3)+3y=9

⇒15+3y=9

⇒3y=9-15=-6

⇒y=-2

Thus, (x, y) = (3, -6).