Intermediate Algebra (6th Edition)

Published by Pearson

Chapter 1 - Section 1.4 - Properties of Real Numbers and Algebraic Expressions - Exercise Set: 69

Answer

$180-x$

Work Step by Step

You are told that the sum of two angle measures (which we will call $x$ and $y$) is 180 degrees. Therefore, $x+y=180$. To isolate $y$ and determine its value in terms of $x$, you need to subtract $x$ from both sides. $(x+y)−x=180−x$ Therefore, $y=180−x$.

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