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Simplifying 2(x2 + -6x + 9) + -2x2 = 9 Reorder the terms: 2(9 + -6x + x2) + -2x2 = 9 (9 * 2 + -6x * 2 + x2 * 2) + -2x2 = 9 (18 + -12x + 2x2) + -2x2 = 9 Combine like terms: 2x2 + -2x2 = 0 18 + -12x + 0 = 9 18 + -12x = 9 Solving 18 + -12x = 9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + -12x = 9 + -18 Combine like terms: 18 + -18 = 0 0 + -12x = 9 + -18 -12x = 9 + -18 Combine like terms: 9 + -18 = -9 -12x = -9 Divide each side by '-12'. x = 0.75 Simplifying x = 0.75
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