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Simplifying 20x2 + 2 + -1[7(x2 + -7) + 5] = 0 Reorder the terms: 20x2 + 2 + -1[7(-7 + x2) + 5] = 0 20x2 + 2 + -1[(-7 * 7 + x2 * 7) + 5] = 0 20x2 + 2 + -1[(-49 + 7x2) + 5] = 0 Reorder the terms: 20x2 + 2 + -1[-49 + 5 + 7x2] = 0 Combine like terms: -49 + 5 = -44 20x2 + 2 + -1[-44 + 7x2] = 0 20x2 + 2 + [-44 * -1 + 7x2 * -1] = 0 20x2 + 2 + [44 + -7x2] = 0 Reorder the terms: 2 + 44 + 20x2 + -7x2 = 0 Combine like terms: 2 + 44 = 46 46 + 20x2 + -7x2 = 0 Combine like terms: 20x2 + -7x2 = 13x2 46 + 13x2 = 0 Solving 46 + 13x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-46' to each side of the equation. 46 + -46 + 13x2 = 0 + -46 Combine like terms: 46 + -46 = 0 0 + 13x2 = 0 + -46 13x2 = 0 + -46 Combine like terms: 0 + -46 = -46 13x2 = -46 Divide each side by '13'. x2 = -3.538461538 Simplifying x2 = -3.538461538 Reorder the terms: 3.538461538 + x2 = -3.538461538 + 3.538461538 Combine like terms: -3.538461538 + 3.538461538 = 0.000000000 3.538461538 + x2 = 0.000000000 The solution to this equation could not be determined.
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