2 X- + 9 90

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.4: Subtracting Real Numbers
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Hello, I need help understanding the answer to this question. In my textbook, it shows that the answer would be 18x+2 but I’m confused on how that answer came about. I would greatly appreciate it if you can explain an easy way to understand this problem

2
X-
+
9
90
Transcribed Image Text:2 X- + 9 90
Expert Solution
Step 1

Evaluate

 

2
90
9
x-1
5
Step 2

On simplifying

 

= 90 2x5)+9x (x-1)
(9 x5)
10 9x-9
=90
45
1 9x
= 90
45
9019x
45
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