A and B are joined sets.If n(A−B)=25+x, n(B−A)=2x, n(A∩B)=2x and n(A) = 2[n(B)], then x = ____.

A and B are joined sets.If n(A−B)=25+x, n(B−A)=2x, n(A∩B)=2x an

1.	A and B are joined sets.If n(A−B)=25+x, n(B−A)=2x, n(A∩B)=2x and n(A) = 2[n(B)], then x = ____.
Answer» A and B are joined sets.If $n (A - B) = 25 + x,$ $n (B - A) = 2 x,$ $n (A \cap B) = 2 x$ and n(A) = 2[n(B)], then x = ____.