3x = 21

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
Problem 15WE
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Question

-3x = 21

 

Expert Solution
Step 1

Here given -3x=21

 

Divide both side by -3 we get 

-3x/-3 = 21/-3

 

x= -7

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