Respuesta :

Answer:

4y

Step-by-step explanation:

When you subtract an already negative number then the two "minus signs" will become one addition sign and it just becomes y + 3y which is 4y

(Just for example: x- (-8x) would turn into x + 8x and the answer would be 9x)
Answer: 4y

Explanation: This is a little tricky, but since it is subtracting a negative, it is just adding 3y to y, which gives you 4y