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Algebra 1

Carter, Cuevas, Day, Holiday, Luchin

$Math Studyset Vaia Explanations$ Math

Student Edition · 801 pages

ISBN: 9780078884801

Chapter 2: Q23. (page 110)

Evaluate each expression if $x = - 4, y = 7, and z = - 9$
$|- 4 y + 2 z| - 7 z$

Short Answer

Expert verified

$|- 4 y + 2 z| - 7 z = 109$

Step by step solution

01

Step 1. Given information.

$x = - 4, y = 7$ and $z = - 9$

And given expression is: $|- 4 y + 2 z| - 7 z$

02

Step 2. Description of step.

To solve the given expression

$|- 4 y + 2 z| - 7 z$

Put the value of y, and z in the expression, as

role="math" localid="1643121266689" $|- 4 y + 2 z| - 7 z = |- 4 (7) + 2 (- 9)| - 7 (- 9) = |- 28 - 18| + 63 = |- 46| + 63 = 46 + 63 = 109$

Thus, $|- 4 y + 2 z| - 7 z = 109$ .

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Most popular questions from this chapter

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