Question 633211
x+y+z = 48
2x+y+z= 60
x+2y+z = 63
solve


x+z = 48-y

x+z = 63-2y
48-y = 63 -2y
y = 63-48 = 15
x+y= 48-15 
x+y = 33
2x+y= 45
33-x= 45-2x
x= 12
x+y+z = 48
z= 48 - 12- 15
z = 21
so 12 , 15 , 21