Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 6 - Systems of Equations and Inequalities - Get Ready - Page 357: 10


$-2\leq f$

Work Step by Step

$-(7f+18)-2f\leq0\longrightarrow$ multiply by -1 using the distributive property $-7f-18-2f\leq0\longrightarrow$ combine like terms $-9f-18\leq0\longrightarrow$ add 9f to each side $-9f-18+9f\leq0+9f\longrightarrow$ add $-18\leq9f\longrightarrow$ divide each side by 9 $-18\div9\leq9f\div9\longrightarrow$ divide $-2\leq f$
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