Question

Diketahui X=Y=3:4 hitunglah (2X +3Y):(3X-5Y)

Answer 1

X:y = 3:4
x = 3y/4

(2x+3y) : (3x-5y)
= (2·3y/4 +3y) : (3·3y/4 -5y)
= 3y(1/2 +1) : y(9/4 -5)
= (9/2) : (9-20)/4
= 9 : (-11)/2
= 18 : -11