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Simplifying (9x4 + 2x3 + -1) + -1(4x2 + -7x + 7) = 0 Reorder the terms: (-1 + 2x3 + 9x4) + -1(4x2 + -7x + 7) = 0 Remove parenthesis around (-1 + 2x3 + 9x4) -1 + 2x3 + 9x4 + -1(4x2 + -7x + 7) = 0 Reorder the terms: -1 + 2x3 + 9x4 + -1(7 + -7x + 4x2) = 0 -1 + 2x3 + 9x4 + (7 * -1 + -7x * -1 + 4x2 * -1) = 0 -1 + 2x3 + 9x4 + (-7 + 7x + -4x2) = 0 Reorder the terms: -1 + -7 + 7x + -4x2 + 2x3 + 9x4 = 0 Combine like terms: -1 + -7 = -8 -8 + 7x + -4x2 + 2x3 + 9x4 = 0 Solving -8 + 7x + -4x2 + 2x3 + 9x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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