The sum of two numbers is 13. two times the first number minus three times the second number is 1. if you let "x"stand for the first number and "y for the second number, what are the two numbers "" """ *a. *"x" = 5, "y" = 8 *b. *"x" = 8, "y" = 5 *c. *"x" = 5, "y" = 8 *d. *"x" = 8, "y" = 5