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Simplifying 2n + 7 = 2(n + 3) + 1 Reorder the terms: 7 + 2n = 2(n + 3) + 1 Reorder the terms: 7 + 2n = 2(3 + n) + 1 7 + 2n = (3 * 2 + n * 2) + 1 7 + 2n = (6 + 2n) + 1 Reorder the terms: 7 + 2n = 6 + 1 + 2n Combine like terms: 6 + 1 = 7 7 + 2n = 7 + 2n Add '-7' to each side of the equation. 7 + -7 + 2n = 7 + -7 + 2n Combine like terms: 7 + -7 = 0 0 + 2n = 7 + -7 + 2n 2n = 7 + -7 + 2n Combine like terms: 7 + -7 = 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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