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Simplifying 0 = x4 + 4x3 + -1x2 + 16x + -20 Reorder the terms: 0 = -20 + 16x + -1x2 + 4x3 + x4 Solving 0 = -20 + 16x + -1x2 + 4x3 + x4 Solving for variable 'x'. Combine like terms: 0 + 20 = 20 20 + -16x + x2 + -4x3 + -1x4 = -20 + 16x + -1x2 + 4x3 + x4 + 20 + -16x + x2 + -4x3 + -1x4 Reorder the terms: 20 + -16x + x2 + -4x3 + -1x4 = -20 + 20 + 16x + -16x + -1x2 + x2 + 4x3 + -4x3 + x4 + -1x4 Combine like terms: -20 + 20 = 0 20 + -16x + x2 + -4x3 + -1x4 = 0 + 16x + -16x + -1x2 + x2 + 4x3 + -4x3 + x4 + -1x4 20 + -16x + x2 + -4x3 + -1x4 = 16x + -16x + -1x2 + x2 + 4x3 + -4x3 + x4 + -1x4 Combine like terms: 16x + -16x = 0 20 + -16x + x2 + -4x3 + -1x4 = 0 + -1x2 + x2 + 4x3 + -4x3 + x4 + -1x4 20 + -16x + x2 + -4x3 + -1x4 = -1x2 + x2 + 4x3 + -4x3 + x4 + -1x4 Combine like terms: -1x2 + x2 = 0 20 + -16x + x2 + -4x3 + -1x4 = 0 + 4x3 + -4x3 + x4 + -1x4 20 + -16x + x2 + -4x3 + -1x4 = 4x3 + -4x3 + x4 + -1x4 Combine like terms: 4x3 + -4x3 = 0 20 + -16x + x2 + -4x3 + -1x4 = 0 + x4 + -1x4 20 + -16x + x2 + -4x3 + -1x4 = x4 + -1x4 Combine like terms: x4 + -1x4 = 0 20 + -16x + x2 + -4x3 + -1x4 = 0 The solution to this equation could not be determined.
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