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Simplifying 9 = 12 + 4x2 Solving 9 = 12 + 4x2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x2' to each side of the equation. 9 + -4x2 = 12 + 4x2 + -4x2 Combine like terms: 4x2 + -4x2 = 0 9 + -4x2 = 12 + 0 9 + -4x2 = 12 Add '-9' to each side of the equation. 9 + -9 + -4x2 = 12 + -9 Combine like terms: 9 + -9 = 0 0 + -4x2 = 12 + -9 -4x2 = 12 + -9 Combine like terms: 12 + -9 = 3 -4x2 = 3 Divide each side by '-4'. x2 = -0.75 Simplifying x2 = -0.75 Reorder the terms: 0.75 + x2 = -0.75 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.75 + x2 = 0.00 The solution to this equation could not be determined.
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