when positive integer x is divided by 9 , the quotient is y and the remainder is 4 . when 2 x is divided by 7 , the quotient is 2 y and the remainder is 1 . what is the value of 5 y – x ?
"( 1 ) x = 9 y + 4 ( 2 ) 2 x = 14 y + 1 ( 2 ) - ( 1 ) : x = 5 y - 3 5 y - x = 3 the answer is b ."
subtract(multiply(5, divide(subtract(multiply(2, 4), 1), subtract(multiply(7, 2), multiply(2, 9)))), add(multiply(9, divide(subtract(multiply(2, 4), 1), subtract(multiply(7, 2), multiply(2, 9)))), 4))