Question

find the value of x +y, if 15x + 17y=85 and 17x+15y =75​

Answer 1

Answer:

37

Step-by-step explanation:

this is value perferrable

Answer 2

Answer:

x+y=5

Step-by-step explanation:

15x+17y=85...(1)

17x+15y=75...(2)

mutyply eq(1)in17 and eq(2)in15

255x+289y=1445...(3)

255x+225y=1125...(4)

eq(3) - eq(4)

64y=320

y=320/64

y=5

put value of y in eq (3)

255x+289*5=1445

255x+1445=1445

255x=1445-1445

255x=0

x=0

x+y=0+5=5