Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.11 - Solving Equations and Inequalities Graphically - 1.11 Exercises - Page 122: 45

Answer

$$x\approx 2.27$$ Our answer is the same as the answer in the example.

Work Step by Step

To form one equation, we have to move each component of the equation either left-hand side or right-hand side. $5-3x-8x+20=0$ $25-11x=0$ Now we can graph the equation $25-11x$ and the solution will be the point where the graph intersects $x$-axis; where the solution gets equal to $0$. As we see from the image above, the point is $\approx2.27$ We obtained the same answer as in the example.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.