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Simplifying x + 12 = x + 12 Reorder the terms: 12 + x = x + 12 Reorder the terms: 12 + x = 12 + x Add '-12' to each side of the equation. 12 + -12 + x = 12 + -12 + x Combine like terms: 12 + -12 = 0 0 + x = 12 + -12 + x x = 12 + -12 + x Combine like terms: 12 + -12 = 0 x = 0 + x x = x Add '-1x' to each side of the equation. x + -1x = x + -1x Combine like terms: x + -1x = 0 0 = x + -1x Combine like terms: x + -1x = 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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