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Simplifying x4 + -4x3 + 9x2 = 20x + -20 Reorder the terms: 9x2 + -4x3 + x4 = 20x + -20 Reorder the terms: 9x2 + -4x3 + x4 = -20 + 20x Solving 9x2 + -4x3 + x4 = -20 + 20x Solving for variable 'x'. Reorder the terms: 20 + -20x + 9x2 + -4x3 + x4 = -20 + 20x + 20 + -20x Reorder the terms: 20 + -20x + 9x2 + -4x3 + x4 = -20 + 20 + 20x + -20x Combine like terms: -20 + 20 = 0 20 + -20x + 9x2 + -4x3 + x4 = 0 + 20x + -20x 20 + -20x + 9x2 + -4x3 + x4 = 20x + -20x Combine like terms: 20x + -20x = 0 20 + -20x + 9x2 + -4x3 + x4 = 0 The solution to this equation could not be determined.
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