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Simplifying (6 + 9x + 4x2 + 5x3) + (9 + -9x + 4x2 + -5x3) = 0 Remove parenthesis around (6 + 9x + 4x2 + 5x3) 6 + 9x + 4x2 + 5x3 + (9 + -9x + 4x2 + -5x3) = 0 Remove parenthesis around (9 + -9x + 4x2 + -5x3) 6 + 9x + 4x2 + 5x3 + 9 + -9x + 4x2 + -5x3 = 0 Reorder the terms: 6 + 9 + 9x + -9x + 4x2 + 4x2 + 5x3 + -5x3 = 0 Combine like terms: 6 + 9 = 15 15 + 9x + -9x + 4x2 + 4x2 + 5x3 + -5x3 = 0 Combine like terms: 9x + -9x = 0 15 + 0 + 4x2 + 4x2 + 5x3 + -5x3 = 0 15 + 4x2 + 4x2 + 5x3 + -5x3 = 0 Combine like terms: 4x2 + 4x2 = 8x2 15 + 8x2 + 5x3 + -5x3 = 0 Combine like terms: 5x3 + -5x3 = 0 15 + 8x2 + 0 = 0 15 + 8x2 = 0 Solving 15 + 8x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + 8x2 = 0 + -15 Combine like terms: 15 + -15 = 0 0 + 8x2 = 0 + -15 8x2 = 0 + -15 Combine like terms: 0 + -15 = -15 8x2 = -15 Divide each side by '8'. x2 = -1.875 Simplifying x2 = -1.875 Reorder the terms: 1.875 + x2 = -1.875 + 1.875 Combine like terms: -1.875 + 1.875 = 0.000 1.875 + x2 = 0.000 The solution to this equation could not be determined.
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