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Simplifying 9x2 + 21 + -8 = 0 Reorder the terms: 21 + -8 + 9x2 = 0 Combine like terms: 21 + -8 = 13 13 + 9x2 = 0 Solving 13 + 9x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + 9x2 = 0 + -13 Combine like terms: 13 + -13 = 0 0 + 9x2 = 0 + -13 9x2 = 0 + -13 Combine like terms: 0 + -13 = -13 9x2 = -13 Divide each side by '9'. x2 = -1.444444444 Simplifying x2 = -1.444444444 Reorder the terms: 1.444444444 + x2 = -1.444444444 + 1.444444444 Combine like terms: -1.444444444 + 1.444444444 = 0.000000000 1.444444444 + x2 = 0.000000000 The solution to this equation could not be determined.
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