Question

what must be added to 7x-y to get 5x + 3y​

Answer 1

Answer:

You can't add y and x. Unless u can

Answer 2

Answer:

Step-by-step explanation:

Let the number be x

=> 7x - y + x = 5x + 3y

=> 8x - y = 5x + 3y

=> 8x - 5x = y + 3y

=> 3x = 4y

x = 4y/3

Hope you understood!!