Answer
$x=3$
Work Step by Step
Solve for $x$:
$$\sqrt {8x-21}=\sqrt{18-5x}$$ $$ {8x-21}={18-5x}$$ $$ {8x+5x}={18+21}$$ $$ 13x=39$$ $$x=3$$
Check the solution:
$$\sqrt {8(3)-21}\stackrel{?}{=}\sqrt{18-5(3)}$$ $$\sqrt {3}=\sqrt{3}\checkmark$$
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 10 - Radical Functions and Equations - Chapter Test - Page 579: 10
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
