Answer:
Option 2
The value of u is 12
Explanation:
u + 6 = 18
Subtract 6 from both side we get,
u + 6 - 6 = 18 - 6
u = 12
Thus, The value of u is 12
FOR VERIFICATION ONLY:-
u + 6 = 18
12 + 6 = 18
18 = 18
L.H.S = R.H.S
Hence Proved!
-TheUnknownScientist 72