Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 6 - Algebra: Equations and Inequalities - 6.2 Linear Equations in One Variable and Proportions - Exercise Set 6.2: 63



Work Step by Step

$\frac{-3}{8}$=$\frac{x}{40}$ Step 1: Cross Multiply $8\times x$=$-3\times40$ $8x=-120$ Step 2: Divide by 8 on both sides $8x\div8$=$-120\div8$ $x=-15$ Answer: $x=-15$
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