Use gauss-jordan elimination to solve the following system of equations. 3x + 5y = 7 6x − y = −8 a. x = 2, y = 1 b. x = 5, y = 6 c. x = 3, y = −1 d. x = −1, y = 2

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.

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