Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 3 - Section 3.3 - Solving Linear Equations in One Variable - Exercise Set - Page 189: 44

Answer

The solution is 5

Work Step by Step

-9(x+2) +25= -19 -19 Apply the distributive property -9$\times$x -9$\times$2 + 25 = -38 Multiply -9x -18 +25 = -38 Simplify -9x +7 =-38 Subtract 7 from both sides -9x +7-7 =-38 -7 -9x =-45 Divide by -9 both sides $\frac{-9x}{-9}$=$\frac{-45}{-9}$ x=5 The solution is 5 Check -9(x+2) +25= -19 -19 -9(5+2) +25= -38 -9(7) +25=-38 -63 +25=-38 -38=-38
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