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Simplifying x + (545 + -1x) = 545 Remove parenthesis around (545 + -1x) x + 545 + -1x = 545 Reorder the terms: 545 + x + -1x = 545 Combine like terms: x + -1x = 0 545 + 0 = 545 545 = 545 Add '-545' to each side of the equation. 545 + -545 = 545 + -545 Combine like terms: 545 + -545 = 0 0 = 545 + -545 Combine like terms: 545 + -545 = 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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