Question

34. Solve the pair of equation 2x - y = 5 and 3x + 2y = 11.​

Answer 1

SOLUTION :-

Here we have two equations...

2x - y = 5 ---(1)

and 3x + 2y = 11 ---(2)

Now,

On multiplying with 3 in the first equation... and multiplying with 2 in the second equation , we will get two new equation.. they are

6x - 3y = 15 ---(3) .......... [by using equation ---(1)]

and 6x + 4y = 22 ---(4) ............ [by using equation ---(2)]

Therefore, on subtracting the above equations, we have

6x - 3y = 15

(-)6x+(-)4y = (-)22

------------------------------

0 - 7y = -7

7y = 7

y = 1 answer...

At last, putting the value of y in equation ---(1) we get

2x - (1) = 5

2x = 6

x = 3

HOPE IT HELPS ☺