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Simplifying X2 + -21x + 240 = 0 Reorder the terms: 240 + X2 + -21x = 0 Solving 240 + X2 + -21x = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-240' to each side of the equation. 240 + X2 + -240 + -21x = 0 + -240 Reorder the terms: 240 + -240 + X2 + -21x = 0 + -240 Combine like terms: 240 + -240 = 0 0 + X2 + -21x = 0 + -240 X2 + -21x = 0 + -240 Combine like terms: 0 + -240 = -240 X2 + -21x = -240 Add '21x' to each side of the equation. X2 + -21x + 21x = -240 + 21x Combine like terms: -21x + 21x = 0 X2 + 0 = -240 + 21x X2 = -240 + 21x Simplifying X2 = -240 + 21x Reorder the terms: 240 + X2 + -21x = -240 + 21x + 240 + -21x Reorder the terms: 240 + X2 + -21x = -240 + 240 + 21x + -21x Combine like terms: -240 + 240 = 0 240 + X2 + -21x = 0 + 21x + -21x 240 + X2 + -21x = 21x + -21x Combine like terms: 21x + -21x = 0 240 + X2 + -21x = 0 The solution to this equation could not be determined.
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