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Simplifying -4(7n + -4) + 28n = 0 Reorder the terms: -4(-4 + 7n) + 28n = 0 (-4 * -4 + 7n * -4) + 28n = 0 (16 + -28n) + 28n = 0 Combine like terms: -28n + 28n = 0 16 + 0 = 0 16 = 0 Solving 16 = 0 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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