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Simplifying (-11x3 + 15x2 + -9x + 12) + (5x3 + 13x2 + -4x + -20) = 0 Reorder the terms: (12 + -9x + 15x2 + -11x3) + (5x3 + 13x2 + -4x + -20) = 0 Remove parenthesis around (12 + -9x + 15x2 + -11x3) 12 + -9x + 15x2 + -11x3 + (5x3 + 13x2 + -4x + -20) = 0 Reorder the terms: 12 + -9x + 15x2 + -11x3 + (-20 + -4x + 13x2 + 5x3) = 0 Remove parenthesis around (-20 + -4x + 13x2 + 5x3) 12 + -9x + 15x2 + -11x3 + -20 + -4x + 13x2 + 5x3 = 0 Reorder the terms: 12 + -20 + -9x + -4x + 15x2 + 13x2 + -11x3 + 5x3 = 0 Combine like terms: 12 + -20 = -8 -8 + -9x + -4x + 15x2 + 13x2 + -11x3 + 5x3 = 0 Combine like terms: -9x + -4x = -13x -8 + -13x + 15x2 + 13x2 + -11x3 + 5x3 = 0 Combine like terms: 15x2 + 13x2 = 28x2 -8 + -13x + 28x2 + -11x3 + 5x3 = 0 Combine like terms: -11x3 + 5x3 = -6x3 -8 + -13x + 28x2 + -6x3 = 0 Solving -8 + -13x + 28x2 + -6x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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