if x / y = 9 / 8 , then ( 8 x + 7 y ) / ( 8 x â € “ 7 y ) = ?
"answer dividing numerator as well as denominator by y , we get given exp . = ( 8 x + 7 y ) / ( 8 x â € “ 7 y ) = ( 8 x / y + 7 ) / ( 8 x / y â € “ 7 ) since x / y = 9 / 8 this implies that = [ ( 8 * 9 ) / 8 + 7 ] / [ ( 8 * 9 ) / 8 - 7 ) ] = ( 9 + 7 ) / ( 9 - 7 ) = 8 option : a"
divide(add(9, 8), subtract(9, 8))