Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.8 - Introduction to Variables, Algebraic Expressions, and Equations - Practice - Page 79: 8


a. 2x b. 8+x c. 10-x d. x-10 e. $6 \div x$ or $\frac{6}{x}$

Work Step by Step

a. Twice a number is another way of saying 2x b. 8 increased by an unknown number is written as 8+x c. 10 decreased by an unknown number is written as 10-x d. 10 subtracted from a number is written as x-10 e. To write the quotient of 6 and a number, you can write it as an expression with the dividing sign or as a fraction. . $6 \div x$ or $\frac{6}{x}$
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