when positive integer x is divided by 8 , the quotient is y and the remainder is 2 . when 2 x is divided by 7 , the quotient is 2 y and the remainder is 4 . what is the value of 6 y – x ?
"( 1 ) x = 8 y + 2 ( 2 ) 2 x = 14 y + 4 ( 2 ) - ( 1 ) : x = 6 y + 2 6 y - x = - 2 the answer is c ."
subtract(multiply(6, divide(subtract(multiply(2, 2), 4), subtract(multiply(7, 2), multiply(2, 8)))), add(multiply(8, divide(subtract(multiply(2, 2), 4), subtract(multiply(7, 2), multiply(2, 8)))), 2))