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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. 1.79 (page 53)

Simplify: $- 2 + 5 (- 4 + 7)$

Short Answer

Expert verified

The required answer is $13$ .

Step by step solution

01

Step 1. Given Information

Given expression: $- 2 + 5 (- 4 + 7)$

02

Step 2. Calculation

We have,

$- 2 + 5 (- 4 + 7)$

$= - 2 + 5 (3) = - 2 + 15 = 13$ work inside the parentheses first and then simplify

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