3.2 Problems The linear systems in Problems 1-10 are in echelon form. Solve each by back substitution. 1. x1 + x2 + 2x3 = 5 x2 + 3x3 = 6 x3 = 2 3. x₁ - 3x2 + 4x3 = 7 x2 - 5x3 = 2 5. x1 + x2 - 2x3 + x4 = 9 X2 X3 + 2x4 = 1 x3 - 3x4 = 5 2. 2x1 - 5x2 + x3 = 2 3x22x3 = 9 x3 = -3 4. x1 - 5x2 + 2x3 = 10 X2 - 7x3 = 5 6. x12x2 + 5x3 - 3x4 = x2-3x3 + 2x4 = 3 7 X4 = -4
3.2 Problems The linear systems in Problems 1-10 are in echelon form. Solve each by back substitution. 1. x1 + x2 + 2x3 = 5 x2 + 3x3 = 6 x3 = 2 3. x₁ - 3x2 + 4x3 = 7 x2 - 5x3 = 2 5. x1 + x2 - 2x3 + x4 = 9 X2 X3 + 2x4 = 1 x3 - 3x4 = 5 2. 2x1 - 5x2 + x3 = 2 3x22x3 = 9 x3 = -3 4. x1 - 5x2 + 2x3 = 10 X2 - 7x3 = 5 6. x12x2 + 5x3 - 3x4 = x2-3x3 + 2x4 = 3 7 X4 = -4
Calculus: Early Transcendentals
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Chapter1: Functions And Models
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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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![3.2 Problems
The linear systems in Problems 1-10 are in echelon form.
Solve each by back substitution.
1. x1 + x2 + 2x3 = 5
x2 + 3x3 = 6
x3 = 2
3. x13x2 + 4x3 = 7
x2 - 5x3 = 2
5. x1 + x2 - 2x3 + x4 = 9
X2
X3 + 2x4 = 1
x3 - 3x4 = 5
-
6. x12x2 + 5x3 3x4 =
x2 3x3 + 2x4 =
-
-
2. 2x1 - 5x2 + x3 =
7
3
X4 = -4
2
3x22x3 = 9
x3 = -3
4. x15x2 + 2x3 = 10
x2 - 7x3 = 5](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff12ec146-5781-453b-8388-2e7cc9921f6c%2F1252445e-d02b-4929-a4f7-efcec227dbc3%2Fz4ndpe_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3.2 Problems
The linear systems in Problems 1-10 are in echelon form.
Solve each by back substitution.
1. x1 + x2 + 2x3 = 5
x2 + 3x3 = 6
x3 = 2
3. x13x2 + 4x3 = 7
x2 - 5x3 = 2
5. x1 + x2 - 2x3 + x4 = 9
X2
X3 + 2x4 = 1
x3 - 3x4 = 5
-
6. x12x2 + 5x3 3x4 =
x2 3x3 + 2x4 =
-
-
2. 2x1 - 5x2 + x3 =
7
3
X4 = -4
2
3x22x3 = 9
x3 = -3
4. x15x2 + 2x3 = 10
x2 - 7x3 = 5
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