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Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset Vaia Explanations$ Math

2nd Edition · 1240 pages

ISBN: 9780998625713

Chapter 1: Q 128. (page 38)

In the following exercises, evaluate the following expressions.
$8 x - 6 when x = 7$

Short Answer

Expert verified

The required value is 50.

Step by step solution

01

Step 1. Given information.

The given expression is:

$8 x - 6$

We have to evaluate the given expression for $x = 7$ .

To evaluate an expression means to find the value of the expression when the variable is replaced by a given number.

02

Step 2. Replace x with 7 in the given expression.

$8 x - 6 = 8 \cdot 7 - 6 = 56 - 6 = 50$

The value of $8 x - 6 when x = 7$ is 50.

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