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Simplifying 91 = 2x * -1x Reorder the terms for easier multiplication: 91 = 2 * -1x * x Multiply 2 * -1 91 = -2x * x Multiply x * x 91 = -2x2 Solving 91 = -2x2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2x2' to each side of the equation. 91 + 2x2 = -2x2 + 2x2 Combine like terms: -2x2 + 2x2 = 0 91 + 2x2 = 0 Add '-91' to each side of the equation. 91 + -91 + 2x2 = 0 + -91 Combine like terms: 91 + -91 = 0 0 + 2x2 = 0 + -91 2x2 = 0 + -91 Combine like terms: 0 + -91 = -91 2x2 = -91 Divide each side by '2'. x2 = -45.5 Simplifying x2 = -45.5 Reorder the terms: 45.5 + x2 = -45.5 + 45.5 Combine like terms: -45.5 + 45.5 = 0.0 45.5 + x2 = 0.0 The solution to this equation could not be determined.
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