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Simplifying 18x2 + 5 + -1[3(x2 + -3) + 7] = 0 Reorder the terms: 18x2 + 5 + -1[3(-3 + x2) + 7] = 0 18x2 + 5 + -1[(-3 * 3 + x2 * 3) + 7] = 0 18x2 + 5 + -1[(-9 + 3x2) + 7] = 0 Reorder the terms: 18x2 + 5 + -1[-9 + 7 + 3x2] = 0 Combine like terms: -9 + 7 = -2 18x2 + 5 + -1[-2 + 3x2] = 0 18x2 + 5 + [-2 * -1 + 3x2 * -1] = 0 18x2 + 5 + [2 + -3x2] = 0 Reorder the terms: 5 + 2 + 18x2 + -3x2 = 0 Combine like terms: 5 + 2 = 7 7 + 18x2 + -3x2 = 0 Combine like terms: 18x2 + -3x2 = 15x2 7 + 15x2 = 0 Solving 7 + 15x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 15x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 15x2 = 0 + -7 15x2 = 0 + -7 Combine like terms: 0 + -7 = -7 15x2 = -7 Divide each side by '15'. x2 = -0.4666666667 Simplifying x2 = -0.4666666667 Reorder the terms: 0.4666666667 + x2 = -0.4666666667 + 0.4666666667 Combine like terms: -0.4666666667 + 0.4666666667 = 0.0000000000 0.4666666667 + x2 = 0.0000000000 The solution to this equation could not be determined.
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