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Simplifying (6 + 7x + 3x2) + -1(-1 + -7x + 3x2 + -9x3) = 0 Remove parenthesis around (6 + 7x + 3x2) 6 + 7x + 3x2 + -1(-1 + -7x + 3x2 + -9x3) = 0 6 + 7x + 3x2 + (-1 * -1 + -7x * -1 + 3x2 * -1 + -9x3 * -1) = 0 6 + 7x + 3x2 + (1 + 7x + -3x2 + 9x3) = 0 Reorder the terms: 6 + 1 + 7x + 7x + 3x2 + -3x2 + 9x3 = 0 Combine like terms: 6 + 1 = 7 7 + 7x + 7x + 3x2 + -3x2 + 9x3 = 0 Combine like terms: 7x + 7x = 14x 7 + 14x + 3x2 + -3x2 + 9x3 = 0 Combine like terms: 3x2 + -3x2 = 0 7 + 14x + 0 + 9x3 = 0 7 + 14x + 9x3 = 0 Solving 7 + 14x + 9x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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