If 10 x+y=75 and 10 y+x=57 for some positive integers x and y, the value of x+y is
Answer Choices
A. 12
B. 5
C. 7
D. 77
E. 132
If 10 x+y=75 and 10 y+x=57 for some positive integers x and y, the value of x+y is
Answer Choices
A. 12
B. 5
C. 7
D. 77
E. 132