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Simplifying 2x + (12 + -2x) = 12 Remove parenthesis around (12 + -2x) 2x + 12 + -2x = 12 Reorder the terms: 12 + 2x + -2x = 12 Combine like terms: 2x + -2x = 0 12 + 0 = 12 12 = 12 Add '-12' to each side of the equation. 12 + -12 = 12 + -12 Combine like terms: 12 + -12 = 0 0 = 12 + -12 Combine like terms: 12 + -12 = 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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