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Intermediate Algebra

OPENSTAX

$Math Studyset Vaia Explanations$ Math

OER 2017 Edition · 1346 pages

ISBN: 9780998625720

Chapter 2: Q 7 (page 111)

In the following exercises, solve each linear equation. $- (w - 12) = 30$

Short Answer

Expert verified

The answer is $w = - 18$

Step by step solution

01

Step 1. Given information

The equation is $- (w - 12) = 30$

Find value of w and check

02

Step 2. Calculation

Isolate w from the equation $- (w - 12) = 30$

$- w + 12 = 30$

Combine like terms

$- w = 18$

Multiply -1 on both sides

$w = - 18$

03

Step 3. Check

Substitute $w = - 18$ in $- (w - 12) = 30$

$- ((- 18) - 12) = 30 30 = 30$

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