Question

if 12x+17y=48 17x+12y=68 then x+y=?​

Answer 1

Answer:

Given : 12x + 17y = 48

17x+12y = 68

To Find: x-y

Solution:

12x + 17y = 48 ---1

17x+12y = 68 --2

Subtract 1 from 2

(17x +12y = 68) − (12x + 17y = 48)

(5x - 5y = 20)

X - Y 20 5 =

x - y = 5

Thus the value of x-y is 5