Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises - Page 35: 55

Answer

The answer is negative

Work Step by Step

Consider BODMAS - Bracket, Order, Division, Multiplication, Addition, Subtraction. Addition comes before subtraction so for the expression $34.5+12.9-50$, the first two numbers will be added together then the sum would be subtracted by 50. $(34.5+12.9)-50$ $(47.4)-50$ $=-2.6$ The answer is negative
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