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Simplifying tr + -7r + tn + -7n = 0 Reorder the terms: -7n + nt + -7r + rt = 0 Solving -7n + nt + -7r + rt = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '7r' to each side of the equation. -7n + nt + -7r + 7r + rt = 0 + 7r Combine like terms: -7r + 7r = 0 -7n + nt + 0 + rt = 0 + 7r -7n + nt + rt = 0 + 7r Remove the zero: -7n + nt + rt = 7r Add '-1rt' to each side of the equation. -7n + nt + rt + -1rt = 7r + -1rt Combine like terms: rt + -1rt = 0 -7n + nt + 0 = 7r + -1rt -7n + nt = 7r + -1rt Reorder the terms: -7n + nt + -7r + rt = 7r + -7r + -1rt + rt Combine like terms: 7r + -7r = 0 -7n + nt + -7r + rt = 0 + -1rt + rt -7n + nt + -7r + rt = -1rt + rt Combine like terms: -1rt + rt = 0 -7n + nt + -7r + rt = 0 The solution to this equation could not be determined.
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