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Simplifying 12x2 + 9x2 + -2 = -17 Reorder the terms: -2 + 12x2 + 9x2 = -17 Combine like terms: 12x2 + 9x2 = 21x2 -2 + 21x2 = -17 Solving -2 + 21x2 = -17 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + 21x2 = -17 + 2 Combine like terms: -2 + 2 = 0 0 + 21x2 = -17 + 2 21x2 = -17 + 2 Combine like terms: -17 + 2 = -15 21x2 = -15 Divide each side by '21'. x2 = -0.7142857143 Simplifying x2 = -0.7142857143 Reorder the terms: 0.7142857143 + x2 = -0.7142857143 + 0.7142857143 Combine like terms: -0.7142857143 + 0.7142857143 = 0.0000000000 0.7142857143 + x2 = 0.0000000000 The solution to this equation could not be determined.
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