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Simplifying (-4x7 + 2x9 + 9 + 9x8) + -1(5 + -3x8 + 8x9 + 7x7) = 0 Reorder the terms: (9 + -4x7 + 9x8 + 2x9) + -1(5 + -3x8 + 8x9 + 7x7) = 0 Remove parenthesis around (9 + -4x7 + 9x8 + 2x9) 9 + -4x7 + 9x8 + 2x9 + -1(5 + -3x8 + 8x9 + 7x7) = 0 Reorder the terms: 9 + -4x7 + 9x8 + 2x9 + -1(5 + 7x7 + -3x8 + 8x9) = 0 9 + -4x7 + 9x8 + 2x9 + (5 * -1 + 7x7 * -1 + -3x8 * -1 + 8x9 * -1) = 0 9 + -4x7 + 9x8 + 2x9 + (-5 + -7x7 + 3x8 + -8x9) = 0 Reorder the terms: 9 + -5 + -4x7 + -7x7 + 9x8 + 3x8 + 2x9 + -8x9 = 0 Combine like terms: 9 + -5 = 4 4 + -4x7 + -7x7 + 9x8 + 3x8 + 2x9 + -8x9 = 0 Combine like terms: -4x7 + -7x7 = -11x7 4 + -11x7 + 9x8 + 3x8 + 2x9 + -8x9 = 0 Combine like terms: 9x8 + 3x8 = 12x8 4 + -11x7 + 12x8 + 2x9 + -8x9 = 0 Combine like terms: 2x9 + -8x9 = -6x9 4 + -11x7 + 12x8 + -6x9 = 0 Solving 4 + -11x7 + 12x8 + -6x9 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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