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Simplifying x + -1(x + -993) = 993 Reorder the terms: x + -1(-993 + x) = 993 x + (-993 * -1 + x * -1) = 993 x + (993 + -1x) = 993 Reorder the terms: 993 + x + -1x = 993 Combine like terms: x + -1x = 0 993 + 0 = 993 993 = 993 Add '-993' to each side of the equation. 993 + -993 = 993 + -993 Combine like terms: 993 + -993 = 0 0 = 993 + -993 Combine like terms: 993 + -993 = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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