answer:
n=0
reasoning:
first, distribute by multiplying 3/2 by 7/3n and 1
this makes the equation 7/2n+3/2=3/2
subtract 3/2 from both sides to get 7/2n=0
divide both sides by 7/2 to get n=0
(I believe this is correct, if I messed anything up I apologize, I just worked it out like a normal algebraic equation)