. Solve the system of linear equation given by x + y = 1 and ax − by = c, where a, b, c are real numbers. Note: The solution in this case will not be numbers but formulas containing a, b, and c.

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter13: Conic Sections
Section13.5: Systems Involving Nonlinear Equations
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4. Solve the system of linear equation given by x + y = 1 and ax − by = c, where
a, b, c are real numbers. Note: The solution in this case will not be numbers but
formulas containing a, b, and c.

5. Solve the system of linear equation given by 2x − 2y = 7 and −x + y = −2

6. Imagine a situation where you have a system of four equations in four variables.
Can you outline a method of solving that system assuming we are talking about
the case when there is a unique solution. Note: You do not have to solve it - just
talk about how you can extend the method learnt for three variables to apply to
the case of four variables.

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