Answer
x=all real numbers
identity equation
Work Step by Step
2(x+2)+2x=4(x+1)
2x+4+2x=4x+4
4x+4=4x+4
4=4
x=all real numbers
There are infinite solutions so it is an identity equation.
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 1 - Equations and Inequalities - Exercise Set 1.2 - Page 119: 74
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