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Simplifying (-4x3 + 8x2 + -4x + 7) + (9x3 + 7x2 + -9x + -4) = 0 Reorder the terms: (7 + -4x + 8x2 + -4x3) + (9x3 + 7x2 + -9x + -4) = 0 Remove parenthesis around (7 + -4x + 8x2 + -4x3) 7 + -4x + 8x2 + -4x3 + (9x3 + 7x2 + -9x + -4) = 0 Reorder the terms: 7 + -4x + 8x2 + -4x3 + (-4 + -9x + 7x2 + 9x3) = 0 Remove parenthesis around (-4 + -9x + 7x2 + 9x3) 7 + -4x + 8x2 + -4x3 + -4 + -9x + 7x2 + 9x3 = 0 Reorder the terms: 7 + -4 + -4x + -9x + 8x2 + 7x2 + -4x3 + 9x3 = 0 Combine like terms: 7 + -4 = 3 3 + -4x + -9x + 8x2 + 7x2 + -4x3 + 9x3 = 0 Combine like terms: -4x + -9x = -13x 3 + -13x + 8x2 + 7x2 + -4x3 + 9x3 = 0 Combine like terms: 8x2 + 7x2 = 15x2 3 + -13x + 15x2 + -4x3 + 9x3 = 0 Combine like terms: -4x3 + 9x3 = 5x3 3 + -13x + 15x2 + 5x3 = 0 Solving 3 + -13x + 15x2 + 5x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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