Question

(b) If 3x - 5y. = 2x + y, find x : y and 3x + 5y/
3x - 5y​

Answer 1

Answer:

25:6

Step-by-step explanation:

3x + 5y/3x – 5y = 7/3

Applying componendo and dividendo

3x + 5y + 3x – 5y/3x + 5y – 3x + 5y = 7 + 3/7 – 3

6x/10y = 10/4

x/y = 10 × 10/4 × 6

x/y = 25/6

∴ x : y = 25 : 6