-6x- 3x + 7 CD + DE = CE 8+(3z +7) = 6z 3z + 15 6z 15 = 3z I= 5 CE = 6(5) : Segment Addition Postulate : Addition/Subtraction Property of Equality : Multiplication/Division Property of Equality # Substitution : Combining like terms/simplifying IIII||
-6x- 3x + 7 CD + DE = CE 8+(3z +7) = 6z 3z + 15 6z 15 = 3z I= 5 CE = 6(5) : Segment Addition Postulate : Addition/Subtraction Property of Equality : Multiplication/Division Property of Equality # Substitution : Combining like terms/simplifying IIII||
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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So I’ve been trying to learn this but I’m still confused please help.

Transcribed Image Text:6x-
3x+ 7
CD + DE = CE
8+(3z +7) = 6z
3z + 15 = 6z
15 3z
I = 5
CE = 6(5)
: Segment Addition Postulate
: Addition/Subtraction Property of Equality
: Multiplication/Division Property of Equality
# Substitution
: Combining like terms/simplifying
I I||||
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