Question: x y + z = 4 2. Solve by elimination: 2x 3}! + 43.7 = 15 5x +3.! 22 = 12 3x2y=0 1. Solve by

x y + z = 4 2. Solve by elimination: 2x 3}! + 43.7 = 15 5x +3.! 22 = 12 3x2y=0 1. Solve by subshtutlon: {5x + 10y = 4 .2 x + 4}! 32' = B 3. Solve the system by using matrices (reduced row echelon form): 3x y + By = 12 x + y + 62 = l

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