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Simplifying x2 + x + 1 = x2 + x + 3 Reorder the terms: 1 + x + x2 = x2 + x + 3 Reorder the terms: 1 + x + x2 = 3 + x + x2 Add '-1x' to each side of the equation. 1 + x + -1x + x2 = 3 + x + -1x + x2 Combine like terms: x + -1x = 0 1 + 0 + x2 = 3 + x + -1x + x2 1 + x2 = 3 + x + -1x + x2 Combine like terms: x + -1x = 0 1 + x2 = 3 + 0 + x2 1 + x2 = 3 + x2 Add '-1x2' to each side of the equation. 1 + x2 + -1x2 = 3 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 1 + 0 = 3 + x2 + -1x2 1 = 3 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 1 = 3 + 0 1 = 3 Solving 1 = 3 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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