Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 7 - Exponents and Exponential Functions - Common Core Cumulative Standards Review - Selected Response - Page 480: 3

Answer

Answer choice $B$

Work Step by Step

"Two more than twice a number is the number tripled." Let's work backwards, and focus on each part "Two more than twice a number 𝐢𝐬 𝐭𝐡𝐞 𝐧𝐮𝐦𝐛𝐞𝐫 𝐭𝐫𝐢𝐩𝐥𝐞𝐝" When you write this part mathematically, you get $ =3n$ So far, we have $? = 3n$ Now let's focus on the other part "𝐓𝐰𝐨 𝐦𝐨𝐫𝐞 𝐭𝐡𝐚𝐧 𝐭𝐰𝐢𝐜𝐞 𝐚 𝐧𝐮𝐦𝐛𝐞𝐫 is the number tripled" When you write this part mathematically, you get $2n + 2$ So now, we have $\boxed{2n +2 = 3n}$
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