Find the value of X, Y by solving the below equations
X + Y = 15
X - Y = 5	Choose the correct choice from the following answers
A) 10 , 5	B) 8 , 7	C) 9 , 6	D) 11 , 4	E) 12 , 3

Rationale: x + y = 15 - - - ( i ) x - y = 5 - - - - - ( ii ) by adding ( i ) and ( ii ) - - - - - - - - - - - - 2 x = 20 = = > x = 20 / 2 = 10 by replacing the value of x in ( i ) we get 10 + y = 15 = = > y = 15 - 10 = 5 . so , x = 10 , y = 5 answer a ) 10 , 5
Answer: A