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Simplifying (2 + 5x + 5x2 + 8x3) + (7 + -5x + 5x2 + -8x3) = 0 Remove parenthesis around (2 + 5x + 5x2 + 8x3) 2 + 5x + 5x2 + 8x3 + (7 + -5x + 5x2 + -8x3) = 0 Remove parenthesis around (7 + -5x + 5x2 + -8x3) 2 + 5x + 5x2 + 8x3 + 7 + -5x + 5x2 + -8x3 = 0 Reorder the terms: 2 + 7 + 5x + -5x + 5x2 + 5x2 + 8x3 + -8x3 = 0 Combine like terms: 2 + 7 = 9 9 + 5x + -5x + 5x2 + 5x2 + 8x3 + -8x3 = 0 Combine like terms: 5x + -5x = 0 9 + 0 + 5x2 + 5x2 + 8x3 + -8x3 = 0 9 + 5x2 + 5x2 + 8x3 + -8x3 = 0 Combine like terms: 5x2 + 5x2 = 10x2 9 + 10x2 + 8x3 + -8x3 = 0 Combine like terms: 8x3 + -8x3 = 0 9 + 10x2 + 0 = 0 9 + 10x2 = 0 Solving 9 + 10x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 10x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 10x2 = 0 + -9 10x2 = 0 + -9 Combine like terms: 0 + -9 = -9 10x2 = -9 Divide each side by '10'. x2 = -0.9 Simplifying x2 = -0.9 Reorder the terms: 0.9 + x2 = -0.9 + 0.9 Combine like terms: -0.9 + 0.9 = 0.0 0.9 + x2 = 0.0 The solution to this equation could not be determined.
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