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Simplifying x2 + 21 + 49 = 0 Reorder the terms: 21 + 49 + x2 = 0 Combine like terms: 21 + 49 = 70 70 + x2 = 0 Solving 70 + x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-70' to each side of the equation. 70 + -70 + x2 = 0 + -70 Combine like terms: 70 + -70 = 0 0 + x2 = 0 + -70 x2 = 0 + -70 Combine like terms: 0 + -70 = -70 x2 = -70 Simplifying x2 = -70 Reorder the terms: 70 + x2 = -70 + 70 Combine like terms: -70 + 70 = 0 70 + x2 = 0 The solution to this equation could not be determined.
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