Question

1. Add:
(I) 3x, -9y=
​

Answer 1

Answer:

hope this was the answer

Answer 2

$\huge\boxed{\fcolorbox{red}{ink}{SOLUTION:}}$

$3x+9y=0 \\ \\ 3x =0 - (9y) \\ \\ 3x = - 9y \\ \\ x = - 3y \\ \\ x = - 3y$