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Simplifying X3 + 2x3 + -21x + -12 = 0 Reorder the terms: -12 + X3 + -21x + 2x3 = 0 Solving -12 + X3 + -21x + 2x3 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '12' to each side of the equation. -12 + X3 + -21x + 12 + 2x3 = 0 + 12 Reorder the terms: -12 + 12 + X3 + -21x + 2x3 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + X3 + -21x + 2x3 = 0 + 12 X3 + -21x + 2x3 = 0 + 12 Combine like terms: 0 + 12 = 12 X3 + -21x + 2x3 = 12 Add '21x' to each side of the equation. X3 + -21x + 21x + 2x3 = 12 + 21x Combine like terms: -21x + 21x = 0 X3 + 0 + 2x3 = 12 + 21x X3 + 2x3 = 12 + 21x Add '-2x3' to each side of the equation. X3 + 2x3 + -2x3 = 12 + 21x + -2x3 Combine like terms: 2x3 + -2x3 = 0 X3 + 0 = 12 + 21x + -2x3 X3 = 12 + 21x + -2x3 Simplifying X3 = 12 + 21x + -2x3 Reorder the terms: -12 + X3 + -21x + 2x3 = 12 + 21x + -2x3 + -12 + -21x + 2x3 Reorder the terms: -12 + X3 + -21x + 2x3 = 12 + -12 + 21x + -21x + -2x3 + 2x3 Combine like terms: 12 + -12 = 0 -12 + X3 + -21x + 2x3 = 0 + 21x + -21x + -2x3 + 2x3 -12 + X3 + -21x + 2x3 = 21x + -21x + -2x3 + 2x3 Combine like terms: 21x + -21x = 0 -12 + X3 + -21x + 2x3 = 0 + -2x3 + 2x3 -12 + X3 + -21x + 2x3 = -2x3 + 2x3 Combine like terms: -2x3 + 2x3 = 0 -12 + X3 + -21x + 2x3 = 0 The solution to this equation could not be determined.
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