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Simplifying -1(2n + 3) + -6 = -9 + -2n Reorder the terms: -1(3 + 2n) + -6 = -9 + -2n (3 * -1 + 2n * -1) + -6 = -9 + -2n (-3 + -2n) + -6 = -9 + -2n Reorder the terms: -3 + -6 + -2n = -9 + -2n Combine like terms: -3 + -6 = -9 -9 + -2n = -9 + -2n Add '9' to each side of the equation. -9 + 9 + -2n = -9 + 9 + -2n Combine like terms: -9 + 9 = 0 0 + -2n = -9 + 9 + -2n -2n = -9 + 9 + -2n Combine like terms: -9 + 9 = 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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