Hi :)
x = 1/2n
Subtract 17nx from both sides
9−nx−17nx = 0
Combine −nx and −17nx to get −18nx
9 −18nx = 0
Subtract 9 from both sides
−18nx = −9
The equation is in standard form
(−18n)x=−9
Divide both sides by −18n
(-18n)x/ -18n = -9/ -18n
Dividing by −18n undoes the multiplication by −18n
x= -9/ -18n
Divide −9 by −18n
x= 1/2n
Hope this helps :)