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Simplifying x2 + -18 = x2 + 2 Reorder the terms: -18 + x2 = x2 + 2 Reorder the terms: -18 + x2 = 2 + x2 Add '-1x2' to each side of the equation. -18 + x2 + -1x2 = 2 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -18 + 0 = 2 + x2 + -1x2 -18 = 2 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -18 = 2 + 0 -18 = 2 Solving -18 = 2 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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