If 29x+37y=103, 37x+29y=95 then wht are x & y ?

Question

jiteshmeghwal9 · Answer

@hartnn @ParthKohli @AravindG @hba  help plz :)

aravindg · Answer

jitesh what difficulty you have here ? Isnt it simply solving a system of linear equations?

aravindg · Answer

i got the answer by observation !!

jiteshmeghwal9 · Answer

I can't do it by any method :(

hartnn · Answer

A general way to solve the questions of the form 
ax+by=c
bx+ay =d
First add the 2 equations : 
(a+b) x + (a+b) y = (c+d)
----> x+y = (c+d)/(a+b)  ---->(3)
Then, subtract the 2 equations, 
(a-b) x + (b-a) y = (c-d) 
---->x-y = (c-d)/(a-b)  ---->(4)
now, from 3, and 4 , 
you have x+y and x-y, which is very easy to solve, can you ?