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: 45

Answer

The solution is 4

Work Step by Step

4x+3 =2x+11 Subtract 3 from both sides 4x+3 -3 =2x+11 -3 4x=2x+8 Subtract 2x from both sides 4x -2x=2x+8 -2x 2x =8 Divide by 2 on both sides $\frac{2x}{2}$=$\frac{8}{2}$ x=4 The solution is 4 Check 4x+3 =2x+11 Replace x with 4 4$\times$4+3 =2$\times$4+11 16+3 = 8 +11 19=19
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