The correct option is D y+1510+y−55=5
Whenever, you get question like this, the best approach is to plug and check.
Let us substitute 15 in each equation in place of variable
Option A) 15+44+15−53
194+103 this will clearly give a fractional value,and not equal to RHS (11).
Therefore, option A is eliminated
Option B) 15+42+15+109
192+259 by same logic; this option is also eliminated.
Option C) x+245=4+x4
15+245 = 395 = LHS
16+154 = 314 = RHS
395≠314
As, options A, B and C are eliminated clearly the answer is option D.
A quick check!
Option D) y+1510+y−55=5
Substituting y = 15, we get
15+1510+15−55=5
3010+105=5
3+2=5
L.H.S = R.H.S
Hence, option D is correct answer