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Simplifying 15x2 + 5 + -1[8(x2 + -5) + 9] = 0 Reorder the terms: 15x2 + 5 + -1[8(-5 + x2) + 9] = 0 15x2 + 5 + -1[(-5 * 8 + x2 * 8) + 9] = 0 15x2 + 5 + -1[(-40 + 8x2) + 9] = 0 Reorder the terms: 15x2 + 5 + -1[-40 + 9 + 8x2] = 0 Combine like terms: -40 + 9 = -31 15x2 + 5 + -1[-31 + 8x2] = 0 15x2 + 5 + [-31 * -1 + 8x2 * -1] = 0 15x2 + 5 + [31 + -8x2] = 0 Reorder the terms: 5 + 31 + 15x2 + -8x2 = 0 Combine like terms: 5 + 31 = 36 36 + 15x2 + -8x2 = 0 Combine like terms: 15x2 + -8x2 = 7x2 36 + 7x2 = 0 Solving 36 + 7x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-36' to each side of the equation. 36 + -36 + 7x2 = 0 + -36 Combine like terms: 36 + -36 = 0 0 + 7x2 = 0 + -36 7x2 = 0 + -36 Combine like terms: 0 + -36 = -36 7x2 = -36 Divide each side by '7'. x2 = -5.142857143 Simplifying x2 = -5.142857143 Reorder the terms: 5.142857143 + x2 = -5.142857143 + 5.142857143 Combine like terms: -5.142857143 + 5.142857143 = 0.000000000 5.142857143 + x2 = 0.000000000 The solution to this equation could not be determined.
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