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Simplifying 7 + -2(n + 7) = -2(n + -6) Reorder the terms: 7 + -2(7 + n) = -2(n + -6) 7 + (7 * -2 + n * -2) = -2(n + -6) 7 + (-14 + -2n) = -2(n + -6) Combine like terms: 7 + -14 = -7 -7 + -2n = -2(n + -6) Reorder the terms: -7 + -2n = -2(-6 + n) -7 + -2n = (-6 * -2 + n * -2) -7 + -2n = (12 + -2n) Add '2n' to each side of the equation. -7 + -2n + 2n = 12 + -2n + 2n Combine like terms: -2n + 2n = 0 -7 + 0 = 12 + -2n + 2n -7 = 12 + -2n + 2n Combine like terms: -2n + 2n = 0 -7 = 12 + 0 -7 = 12 Solving -7 = 12 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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