Question

If 7x-15y=4x+y,find the value of
(1)9x+5y/9x-5y (2)3x^2+2y^2/3x^2-2y_2
​

Answer 1

Step-by-step explanation:

$7x - 15y = 4x + y \\ 7x - 4x = y + 15y \\ 3x = 16y \\ x = \frac{16}{3} y$

$\frac{9x + 5y}{9x - 3y} = \frac{9 \times \frac{16}{3}y + 5y }{9 \times \frac{16}{3} y - 5y} \\ \frac{48y + 5y}{48y - 5y} = \frac{53}{43}$