Question

X - 3y and -3x - y subtract

Answer 1

Answer:

X-3y -(-3x-y)

X-3y+3x+y

x+y

Answer 2

Answer:

$x - 3y - ( - 3x - y) \\ \\ = x - 3y + (3y - y) \\ \\ = x - 3y + 3y - y \\ \\ = x - y \\ \\ ( - 3y \: and \: + 3y \: gets \: cancelled)$

hope it helps uH ✔