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