When positive integer x is divided by 8, the quotient is y and the remainder is 2. When 2x is divided by 7, the quotient is 2y and the remainder is 4. What is the value of 6y – x?	Choose the correct choice
A) -1	B) 1	C) -2	D) 2	E) -3
(1) x = 8y+2   (2) 2x = 14y+4   (2)-(1): x=6y+2   6y-x=-2   The answer is -2.
<result>C</result>
When positive integer x is divided by 8, the quotient is y and the remainder is 2. When 2x is divided by 7, the quotient is 2y and the remainder is 4. What is the value of 6y – x?