Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 4 - Section 4.4 - Systems of Linear Equations and Problem Solving - Exercise Set - Page 318: 8


x+y=16 x+3y=16

Work Step by Step

The total of two numbers means adding two numbers together. Let's call the two numbers x and y. So its total will be: x+y=16 The first number, x, plus 2 (x+2) more (plus) than 3 times the second, y (multiply 3) is (equals) 18 So x+2 + 3y = 18, which then simplifies to x+3y=16 so: x+y=16 x+3y=16
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