6. Find the value of "x"

If $n(A \cup B \cup C) = 120$, $n(A) = 2x$, $n(B) = x$, $n(C) = 2x$, $n(A \cap B) = 30$, $n(B \cap C) = 30$, $n(A \cap C) = 20$ and $n(A \cap B \cap C) = 5$. Then find the value of $x$.

 

The value of $x =$ 195394038.