Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Skills Handbook - Simplifying Expressions With Integers - Exercises: 7

Answer

$4$

Work Step by Step

Subtraction is simply adding the opposite of the subtrahend, so $-8-(-12)=-8+12$ To add two numbers with different signs, we find the difference between their absolute values, and give the sum the sign of the number with the greater absolute value: $-8+12=(|-12|-|8|)=12-8=4$
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