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Simplifying 3(3x2 + -7) + -1[9(2x2 + -1) + 7] = 0 Reorder the terms: 3(-7 + 3x2) + -1[9(2x2 + -1) + 7] = 0 (-7 * 3 + 3x2 * 3) + -1[9(2x2 + -1) + 7] = 0 (-21 + 9x2) + -1[9(2x2 + -1) + 7] = 0 Reorder the terms: -21 + 9x2 + -1[9(-1 + 2x2) + 7] = 0 -21 + 9x2 + -1[(-1 * 9 + 2x2 * 9) + 7] = 0 -21 + 9x2 + -1[(-9 + 18x2) + 7] = 0 Reorder the terms: -21 + 9x2 + -1[-9 + 7 + 18x2] = 0 Combine like terms: -9 + 7 = -2 -21 + 9x2 + -1[-2 + 18x2] = 0 -21 + 9x2 + [-2 * -1 + 18x2 * -1] = 0 -21 + 9x2 + [2 + -18x2] = 0 Reorder the terms: -21 + 2 + 9x2 + -18x2 = 0 Combine like terms: -21 + 2 = -19 -19 + 9x2 + -18x2 = 0 Combine like terms: 9x2 + -18x2 = -9x2 -19 + -9x2 = 0 Solving -19 + -9x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + -9x2 = 0 + 19 Combine like terms: -19 + 19 = 0 0 + -9x2 = 0 + 19 -9x2 = 0 + 19 Combine like terms: 0 + 19 = 19 -9x2 = 19 Divide each side by '-9'. x2 = -2.111111111 Simplifying x2 = -2.111111111 Reorder the terms: 2.111111111 + x2 = -2.111111111 + 2.111111111 Combine like terms: -2.111111111 + 2.111111111 = 0.000000000 2.111111111 + x2 = 0.000000000 The solution to this equation could not be determined.
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