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Simplifying 9x2 + 4 = -9x2 Reorder the terms: 4 + 9x2 = -9x2 Solving 4 + 9x2 = -9x2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9x2' to each side of the equation. 4 + 9x2 + 9x2 = -9x2 + 9x2 Combine like terms: 9x2 + 9x2 = 18x2 4 + 18x2 = -9x2 + 9x2 Combine like terms: -9x2 + 9x2 = 0 4 + 18x2 = 0 Add '-4' to each side of the equation. 4 + -4 + 18x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 18x2 = 0 + -4 18x2 = 0 + -4 Combine like terms: 0 + -4 = -4 18x2 = -4 Divide each side by '18'. x2 = -0.2222222222 Simplifying x2 = -0.2222222222 Reorder the terms: 0.2222222222 + x2 = -0.2222222222 + 0.2222222222 Combine like terms: -0.2222222222 + 0.2222222222 = 0.0000000000 0.2222222222 + x2 = 0.0000000000 The solution to this equation could not be determined.
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