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Simplifying 4 + 2n = 2(n + 2) Reorder the terms: 4 + 2n = 2(2 + n) 4 + 2n = (2 * 2 + n * 2) 4 + 2n = (4 + 2n) Add '-4' to each side of the equation. 4 + -4 + 2n = 4 + -4 + 2n Combine like terms: 4 + -4 = 0 0 + 2n = 4 + -4 + 2n 2n = 4 + -4 + 2n Combine like terms: 4 + -4 = 0 2n = 0 + 2n 2n = 2n Add '-2n' to each side of the equation. 2n + -2n = 2n + -2n Combine like terms: 2n + -2n = 0 0 = 2n + -2n Combine like terms: 2n + -2n = 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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