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Simplifying 8 + -1x(a + -1) = 7 + a Reorder the terms: 8 + -1x(-1 + a) = 7 + a 8 + (-1 * -1x + a * -1x) = 7 + a Reorder the terms: 8 + (-1ax + 1x) = 7 + a 8 + (-1ax + 1x) = 7 + a Solving 8 + -1ax + 1x = 7 + a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1a' to each side of the equation. 8 + -1ax + -1a + 1x = 7 + a + -1a Reorder the terms: 8 + -1a + -1ax + 1x = 7 + a + -1a Combine like terms: a + -1a = 0 8 + -1a + -1ax + 1x = 7 + 0 8 + -1a + -1ax + 1x = 7 Add '-8' to each side of the equation. 8 + -1a + -1ax + -8 + 1x = 7 + -8 Reorder the terms: 8 + -8 + -1a + -1ax + 1x = 7 + -8 Combine like terms: 8 + -8 = 0 0 + -1a + -1ax + 1x = 7 + -8 -1a + -1ax + 1x = 7 + -8 Combine like terms: 7 + -8 = -1 -1a + -1ax + 1x = -1 Add '-1x' to each side of the equation. -1a + -1ax + 1x + -1x = -1 + -1x Combine like terms: 1x + -1x = 0 -1a + -1ax + 0 = -1 + -1x -1a + -1ax = -1 + -1x Reorder the terms: 1 + -1a + -1ax + x = -1 + -1x + 1 + x Reorder the terms: 1 + -1a + -1ax + x = -1 + 1 + -1x + x Combine like terms: -1 + 1 = 0 1 + -1a + -1ax + x = 0 + -1x + x 1 + -1a + -1ax + x = -1x + x Combine like terms: -1x + x = 0 1 + -1a + -1ax + x = 0 The solution to this equation could not be determined.
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