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Simplifying X3 + 7x2 + -20x + -140 = 0 Reorder the terms: -140 + X3 + -20x + 7x2 = 0 Solving -140 + X3 + -20x + 7x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '140' to each side of the equation. -140 + X3 + -20x + 140 + 7x2 = 0 + 140 Reorder the terms: -140 + 140 + X3 + -20x + 7x2 = 0 + 140 Combine like terms: -140 + 140 = 0 0 + X3 + -20x + 7x2 = 0 + 140 X3 + -20x + 7x2 = 0 + 140 Combine like terms: 0 + 140 = 140 X3 + -20x + 7x2 = 140 Add '20x' to each side of the equation. X3 + -20x + 20x + 7x2 = 140 + 20x Combine like terms: -20x + 20x = 0 X3 + 0 + 7x2 = 140 + 20x X3 + 7x2 = 140 + 20x Add '-7x2' to each side of the equation. X3 + 7x2 + -7x2 = 140 + 20x + -7x2 Combine like terms: 7x2 + -7x2 = 0 X3 + 0 = 140 + 20x + -7x2 X3 = 140 + 20x + -7x2 Simplifying X3 = 140 + 20x + -7x2 Reorder the terms: -140 + X3 + -20x + 7x2 = 140 + 20x + -7x2 + -140 + -20x + 7x2 Reorder the terms: -140 + X3 + -20x + 7x2 = 140 + -140 + 20x + -20x + -7x2 + 7x2 Combine like terms: 140 + -140 = 0 -140 + X3 + -20x + 7x2 = 0 + 20x + -20x + -7x2 + 7x2 -140 + X3 + -20x + 7x2 = 20x + -20x + -7x2 + 7x2 Combine like terms: 20x + -20x = 0 -140 + X3 + -20x + 7x2 = 0 + -7x2 + 7x2 -140 + X3 + -20x + 7x2 = -7x2 + 7x2 Combine like terms: -7x2 + 7x2 = 0 -140 + X3 + -20x + 7x2 = 0 The solution to this equation could not be determined.
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