solve the system  by substitution. If the system is inconsistent or has dependent equations, say so  1) x=22+y    3x-6y=21 2)x+y=-6   x+y=-8

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter6: Systems Of Linear Equations And Inequalities
Section: Chapter Questions
Problem 18SGR
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solve the system  by substitution. If the system is inconsistent or has dependent equations, say so 

1) x=22+y

   3x-6y=21

2)x+y=-6

  x+y=-8

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