Solve the following system of equations by: (a) substitution and (b) by elimination. a) 3x+2y = -9 (b) 3x+2y = -9 2x + y = -7 2x + y = -7

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter4: Systems Of Linear Equations
Section4.1: Solve Systems Of Linear Equations With Two Variables
Problem 69E: Solve the system of equations by substitution and explain all your steps in words: {3x+y=12x=y8 .
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Solve the following system of equations by: (a) substitution and (b) by elimination.
(a) 3x+2y = -9
(b) 3x +2y = -9
2.x + y = -7
2x + y = -7
Transcribed Image Text:POD Solve the following system of equations by: (a) substitution and (b) by elimination. (a) 3x+2y = -9 (b) 3x +2y = -9 2.x + y = -7 2x + y = -7
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