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Simplifying 8x2 + 21 + -9 = 0 Reorder the terms: 21 + -9 + 8x2 = 0 Combine like terms: 21 + -9 = 12 12 + 8x2 = 0 Solving 12 + 8x2 = 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 + -12 + 8x2 = 0 + -12 Combine like terms: 12 + -12 = 0 0 + 8x2 = 0 + -12 8x2 = 0 + -12 Combine like terms: 0 + -12 = -12 8x2 = -12 Divide each side by '8'. x2 = -1.5 Simplifying x2 = -1.5 Reorder the terms: 1.5 + x2 = -1.5 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 1.5 + x2 = 0.0 The solution to this equation could not be determined.
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