Solve each system by using elementary row operations on the equations

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Question [textbook: https://amzn.to/3Y3CK9a] [1.1] Solve each system in Exercises 1–4 by using elementary row operations on the equations or on the augmented matrix. Follow the systematic elimination procedure described in this section. x_1 + 5x_2 = 7 and -2x_1 – 7x_2 = -5

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