Question

solve 21x+47y=110 and 47x+21y=162

Answer 1

HEY DEAR YOUR ANSWER IS HERE

Answer 2

21x+47y=110......1.equ.
47x+21y=162.....2 equ

add equ 1 and 2

21x+47y=110
47x+21y=162
_________
68x+68y=272
divide equ by 68
x+y=4.....equ.3


subtract equ 1 from 2
47x+21y=162
21x+47y=110
_________
26x-26y=52

divide equ by 26
x-y=2.....equ4

add equ no 3 and 4
x+y=4
x-y=2
____
2x= 2
x=2/2
x= 1

substitute x value in equ 3
x+y=4
1+y=4
y=4-1
y=3

solu:(x,y)=(1,3)..

hope it will help u..