Question 228780
x+y=18 or x=18-y
3x+2y=44
3(18-y)+2y=44
54-3y+2y=44
-y=44-54
-y=-10
y=10 ans.
x+10=18
x=18-10
x=8 ans.
Proof:
3*8+2*10=44
24+20=44
44=44