Question

4n-9=-9
Find N please
WILL MARK BRAINLESS

Answer 1

4n - 9 = -9
     +9    +9
4n = 0
/4    /4
n = 0
does it work?  plug to find out
4(0) - 9 = -9
0-9 = -9
-9=-9

Answer 2

First brink the -9 over to the other side of the equal sign
4n-9=-9
+9=+9
4n=0
Second you would divide the coefficient which is 4 by both sides
4n=0
———
4 =4

N= 0