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Simplifying x2 + -5x2 + 7 + 6x2 = 0 Reorder the terms: 7 + x2 + -5x2 + 6x2 = 0 Combine like terms: x2 + -5x2 = -4x2 7 + -4x2 + 6x2 = 0 Combine like terms: -4x2 + 6x2 = 2x2 7 + 2x2 = 0 Solving 7 + 2x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2x2 = 0 + -7 2x2 = 0 + -7 Combine like terms: 0 + -7 = -7 2x2 = -7 Divide each side by '2'. x2 = -3.5 Simplifying x2 = -3.5 Reorder the terms: 3.5 + x2 = -3.5 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 3.5 + x2 = 0.0 The solution to this equation could not be determined.
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