Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 1, Equations and Inequalities - 1.6 Solve Inequalities - 1.6 Exercises - Skill Practice - Page 45: 25

Answer

$x \lt 4$ Please see image
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Work Step by Step

$ 15-3x\gt 3\qquad$ ...add $-15$ to each side of the inequality. $ 15-15-3x\gt 3-15\qquad$ ...simplify. $-3x\gt-12\qquad$ ...divide with $-3$. ...dividing with a negative inverts the inequality sign. $x \lt 4$ The solutions of the given inequality are all real numbers smaller than $4$. Smaller numbers are to the left of $4$. Use an open dot in the graph to indicate $4$ is not a solution.
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