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Simplifying a(n + -7) + 9 = bn Reorder the terms: a(-7 + n) + 9 = bn (-7 * a + n * a) + 9 = bn (-7a + an) + 9 = bn Reorder the terms: 9 + -7a + an = bn Solving 9 + -7a + an = bn Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -7a + -9 + an = -9 + bn Reorder the terms: 9 + -9 + -7a + an = -9 + bn Combine like terms: 9 + -9 = 0 0 + -7a + an = -9 + bn -7a + an = -9 + bn Reorder the terms: 9 + -7a + an + -1bn = -9 + bn + 9 + -1bn Reorder the terms: 9 + -7a + an + -1bn = -9 + 9 + bn + -1bn Combine like terms: -9 + 9 = 0 9 + -7a + an + -1bn = 0 + bn + -1bn 9 + -7a + an + -1bn = bn + -1bn Combine like terms: bn + -1bn = 0 9 + -7a + an + -1bn = 0 The solution to this equation could not be determined.
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