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Simplifying -2(7n + 10) = 7(4 + -2n) Reorder the terms: -2(10 + 7n) = 7(4 + -2n) (10 * -2 + 7n * -2) = 7(4 + -2n) (-20 + -14n) = 7(4 + -2n) -20 + -14n = (4 * 7 + -2n * 7) -20 + -14n = (28 + -14n) Add '14n' to each side of the equation. -20 + -14n + 14n = 28 + -14n + 14n Combine like terms: -14n + 14n = 0 -20 + 0 = 28 + -14n + 14n -20 = 28 + -14n + 14n Combine like terms: -14n + 14n = 0 -20 = 28 + 0 -20 = 28 Solving -20 = 28 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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