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Simplifying 90 = -2x2 + 8 Reorder the terms: 90 = 8 + -2x2 Solving 90 = 8 + -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. 90 + 2x2 = 8 + -2x2 + 2x2 Combine like terms: -2x2 + 2x2 = 0 90 + 2x2 = 8 + 0 90 + 2x2 = 8 Add '-90' to each side of the equation. 90 + -90 + 2x2 = 8 + -90 Combine like terms: 90 + -90 = 0 0 + 2x2 = 8 + -90 2x2 = 8 + -90 Combine like terms: 8 + -90 = -82 2x2 = -82 Divide each side by '2'. x2 = -41 Simplifying x2 = -41 Reorder the terms: 41 + x2 = -41 + 41 Combine like terms: -41 + 41 = 0 41 + x2 = 0 The solution to this equation could not be determined.
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