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Simplifying 90 = x2 + 36 + -3x2 Reorder the terms: 90 = 36 + x2 + -3x2 Combine like terms: x2 + -3x2 = -2x2 90 = 36 + -2x2 Solving 90 = 36 + -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 = 36 + -2x2 + 2x2 Combine like terms: -2x2 + 2x2 = 0 90 + 2x2 = 36 + 0 90 + 2x2 = 36 Add '-90' to each side of the equation. 90 + -90 + 2x2 = 36 + -90 Combine like terms: 90 + -90 = 0 0 + 2x2 = 36 + -90 2x2 = 36 + -90 Combine like terms: 36 + -90 = -54 2x2 = -54 Divide each side by '2'. x2 = -27 Simplifying x2 = -27 Reorder the terms: 27 + x2 = -27 + 27 Combine like terms: -27 + 27 = 0 27 + x2 = 0 The solution to this equation could not be determined.
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