The sum of the angles of a triangle is 180°. If one angle of atriangle measures x° and a second angle measures (2x + 7)°,express the measure of the third angle in terms of x. Simplify the expression.

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter3: Math Models
Section3.4: Solve Geometry Applications: Triangles, Rectangles, And The Pythagorean Theorem
Problem 3.75TI: The measure of one angle of a right triangle is 50° more than the measure of the smallest angle....
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The sum of the angles of a triangle is 180°. If one angle of a
triangle measures x° and a second angle measures (2x + 7)°,
express the measure of the third angle in terms of x. Simplify the expression.

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