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Simplifying 7x2 + 81 = 64 Reorder the terms: 81 + 7x2 = 64 Solving 81 + 7x2 = 64 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-81' to each side of the equation. 81 + -81 + 7x2 = 64 + -81 Combine like terms: 81 + -81 = 0 0 + 7x2 = 64 + -81 7x2 = 64 + -81 Combine like terms: 64 + -81 = -17 7x2 = -17 Divide each side by '7'. x2 = -2.428571429 Simplifying x2 = -2.428571429 Reorder the terms: 2.428571429 + x2 = -2.428571429 + 2.428571429 Combine like terms: -2.428571429 + 2.428571429 = 0.000000000 2.428571429 + x2 = 0.000000000 The solution to this equation could not be determined.
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