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Solve the system of equations by any method. 3x - 4y+ 2z = -19 (1) %3D 2x + 4y + z = 20 (2) 2x + 3y + 5z = 23 (3) %3D

Solve the system of equations by any method. 3x - 4y+ 2z = -19 (1) %3D 2x + 4y + z = 20 (2) 2x + 3y + 5z = 23 (3) %3D

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Solve the system of equations by any method. 3x – 4y + 2z = -19 (1) 2x + 4y + z = 20 (2) 2x + 3y + 5z = 23 (3) Enter the exact answer as an ordered triple, (x, y, z). Hint: There are multiple ways to solve this system of equations. • A strategy is to eliminate one of the variables and end up with 2 equations in 2 variables. • One way to do that is to begin with equation 2 to get z= 20 – 2 r - 4 y. • Then substitute 20 - 2 x - 4 y for z in equations 1 and 3. • You now have 2 equations (the modified equations 1 and 3) in 2 variables (r and y). • Solve this smaller system for a and y and then use z = 20 – 2 x 4 y to calculate z. Submit Assigne SAMSUNG
Transcribed Image Text:Solve the system of equations by any method. 3x – 4y + 2z = -19 (1) 2x + 4y + z = 20 (2) 2x + 3y + 5z = 23 (3) Enter the exact answer as an ordered triple, (x, y, z). Hint: There are multiple ways to solve this system of equations. • A strategy is to eliminate one of the variables and end up with 2 equations in 2 variables. • One way to do that is to begin with equation 2 to get z= 20 – 2 r - 4 y. • Then substitute 20 - 2 x - 4 y for z in equations 1 and 3. • You now have 2 equations (the modified equations 1 and 3) in 2 variables (r and y). • Solve this smaller system for a and y and then use z = 20 – 2 x 4 y to calculate z. Submit Assigne SAMSUNG
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