Solve using back substitution. X1 3x2 + 4x3 = 7 2 -5x3 = 2 x1
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Solve using back substitution.
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X1 — 3x2 + 4x3 = 7 х2 -5x3 = 2 x1 — 5x2 + 2x3 = 10 X1 — 3x2 + 4x3 = 7 х2 -5x3 = 2 x1 — 5x2 + 2x3 = 10
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