Question

(iv)
15x + 17y = 21 व 17x + 15y = 11 यावरून x +y ची किंमत काढा.​

Answer 1

Step-by-step explanation:

15x+17y=21____(1)

17x+15y=11_____(2)

equation(1)+equation(2)

15x+17y=21

+ 17x+15y=11

_________

32x+32y=32______(Divide by 32)

Now, x+y=1_____(3)

Therefore, x+y=1 .

Answer 2

Step-by-step explanation:

15 x + 17 Y 21

17 X + 15 y = 11

eqution 1 + eaution 2

17 x + 15 Y = 11

32 x + 32 y =32 (Divide by 32)

Now , x + Y = 1

Therefore , X + Y = 1