Inequalities

Exercise 1:

Find all solutions of the inequality

displaymath229

Solution.

We want to isolate x on the left: subtract 2 from both sides (Rule 1) to obtain

displaymath237

i.e.,

displaymath238

then, divide by 3 on both sides (Rule 3a):

displaymath239

so

displaymath240

The set of solutions consists of all real numbers exceeding 1.

[Back] [Exercises] [Next]
[Algebra] [Trigonometry] [Complex Variables]
[Calculus] [Differential Equations] [Matrix Algebra]

S.O.S MATHematics home page

Do you need more help? Please post your question on our S.O.S. Mathematics CyberBoard.

Helmut Knaust
Fri Jul 11 14:32:40 MDT 1997

Copyright 1999-2017 MathMedics, LLC. All rights reserved.
Contact us
Math Medics, LLC. - P.O. Box 12395 - El Paso TX 79913 - USA
users online during the last hour