sets A and B, n(A U B) = 84, and n(A n B) = 12, and n(B) = 45. Find n(A). symbolic formatting help

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.1: Real Numbers
Problem 25E
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For sets A and B, n(A U B) = 84, and n(A n B) = 12, and n(B) = 45. Find n(A).
symbolic formatting help
Transcribed Image Text:For sets A and B, n(A U B) = 84, and n(A n B) = 12, and n(B) = 45. Find n(A). symbolic formatting help
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