1. Solve the system. 3x1 + 2x2 = 4 = 3 3x1 + 6x2 2x3 = -4 2. Find the elementary row operation that transforms the first matrix into the second, and then find the reverse row operation that transforms the second matrix into the first. [12 -5 0 1 2 -5 0 0 1 -3 -2 0 1 -3 -2 4 -12 7 0 0 0 15 x2 + 2x3

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