1/2x+1/2y=-1?  x-y=-4   need to solve using solution method, and specify as an ordered pair?

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
Chapter9: Systems Of Linear Equations
Section9.2: The Substitution Method
Problem 25WE
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1/2x+1/2y=-1? 

x-y=-4

 

need to solve using solution method, and specify as an ordered pair?  

 

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