Math, asked by payal3412, 4 months ago

find the value of x+y and x-y for 15x-17y=11,. 17 x-15y=21​

Answers

Answered by nidhimkadam
2

Answer:

15x+17y =21 .... (i)

17x+15y=11--(ii)

adding

15x+17y+ 17x+15y=21 +1 1

=>32x +32 Y = 32

X +y=1

subtracting eqi) from ii)

we get,

17x+15y-15x-17y=11-21

2x-2y= -10

X-y=. -5

Step-by-step explanation:

Similar questions