Maths equations problem

Let present ages of Vatha is X
Let present ages of Chris is Y


SO, X+Y=36............(1)
and, X+4+Y+4=2X....(2)

From (1) get

X=36-Y.......(3)

Sub it into (2)

36-Y+4+Y+4=2(36-Y)
44=72-2Y
-28=-2Y
28=2Y
Y=14

From (3)
X=36-Y=36-14=22

SO,

present ages of Vatha is 22
present ages of Chris is 14

Let the present age of Vatha be X
,the present age of Chris be Y
then, X + Y = 36 -------(1)
( X + 4 ) + ( Y+ 4 )= 2X----(2)
From , Y + 8 = 2X- X
Y + 8 = X------(3)

SUB ( 3 ) to ( 1 )
then, 2Y + 8 = 36
2Y=28
Y=14
then,by ( 3 ), X = 22

Let the present age of Vatha be X
the present age of Chris be Y
then, X + Y = 36 -------(1)
( X + 4 ) + ( Y+ 4 )= 2X----(2)
From , X = Y + 8------(*)
SUB ( * ) to ( 1 )
then, 2Y + 8 = 36
Y=14
then,by ( * ), X = 22

X=Vatha
y=chris

x+y=36----1
(x+4)+(y+4)=2x-----2

from1,
x=36-y----3
sub 3 into 2,
(36-y+4)+(y+4)=2(36-y)
40-y+y+4=72-2y
2y=28
y=14

sub y=14 into 1
x+14=36
x=22

so that, x=22 y=14
Vatha is 22 Chris is 14 years old!