Question

If 3x +5y=9 and 5x+3y=7,then find the value

Answer 1

Hey there!

I've done it using elimination method.

x = 1/2
y = 1/3

(Refer Attachment)

Pardon me for the handwriting.
If ye can't understand, pls include it in comment section.

Hope helped

Answer 2

HELLO DEAR,

3X + 5Y = 9 -------------(1)

5X +3Y = 7 ----------------(2)


SUBTRACTING---(1) from----(2)

we get

3x+5y = 9
5x+3y = 7
(-)_(-)___(-)
——————
-2x +2y = 2

=> -x + y = 1----------(3)


adding ---(2) and --(1)


3x +5y = 9
5x +3y = 7
——————
8x + 8y = 16

=> x + y = 2----------(4)


from--(3) and ---(4)

we get,

-x + y = 1
x + y = 2
————
2y = 3


=> y = 3/2 Put in --(3)

we get,

-x +3/2 = 1

=> x = 3/2 - 1

=> x = (3-2)/2

=> x = 1/2



I HOPE ITS HELP YOU DEAR,
THANKS