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Simplifying 15x2 + -13X + -20 = 0 Reorder the terms: -20 + -13X + 15x2 = 0 Solving -20 + -13X + 15x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '20' to each side of the equation. -20 + -13X + 20 + 15x2 = 0 + 20 Reorder the terms: -20 + 20 + -13X + 15x2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -13X + 15x2 = 0 + 20 -13X + 15x2 = 0 + 20 Combine like terms: 0 + 20 = 20 -13X + 15x2 = 20 Add '-15x2' to each side of the equation. -13X + 15x2 + -15x2 = 20 + -15x2 Combine like terms: 15x2 + -15x2 = 0 -13X + 0 = 20 + -15x2 -13X = 20 + -15x2 Divide each side by '-13'. X = -1.538461538 + 1.153846154x2 Simplifying X = -1.538461538 + 1.153846154x2
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