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Simplifying x2 + 7 = x2 + 1 Reorder the terms: 7 + x2 = x2 + 1 Reorder the terms: 7 + x2 = 1 + x2 Add '-1x2' to each side of the equation. 7 + x2 + -1x2 = 1 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 7 + 0 = 1 + x2 + -1x2 7 = 1 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 7 = 1 + 0 7 = 1 Solving 7 = 1 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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