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Simplifying (A + -9)(2a + -1) = 0 Reorder the terms: (-9 + A)(2a + -1) = 0 Reorder the terms: (-9 + A)(-1 + 2a) = 0 Multiply (-9 + A) * (-1 + 2a) (-9(-1 + 2a) + A(-1 + 2a)) = 0 ((-1 * -9 + 2a * -9) + A(-1 + 2a)) = 0 ((9 + -18a) + A(-1 + 2a)) = 0 (9 + -18a + (-1 * A + 2a * A)) = 0 (9 + -18a + (-1A + 2aA)) = 0 Reorder the terms: (9 + -1A + -18a + 2aA) = 0 (9 + -1A + -18a + 2aA) = 0 Solving 9 + -1A + -18a + 2aA = 0 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 + -1A + -18a + -9 + 2aA = 0 + -9 Reorder the terms: 9 + -9 + -1A + -18a + 2aA = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1A + -18a + 2aA = 0 + -9 -1A + -18a + 2aA = 0 + -9 Combine like terms: 0 + -9 = -9 -1A + -18a + 2aA = -9 Add '18a' to each side of the equation. -1A + -18a + 18a + 2aA = -9 + 18a Combine like terms: -18a + 18a = 0 -1A + 0 + 2aA = -9 + 18a -1A + 2aA = -9 + 18a Reorder the terms: 9 + -1A + -18a + 2aA = -9 + 18a + 9 + -18a Reorder the terms: 9 + -1A + -18a + 2aA = -9 + 9 + 18a + -18a Combine like terms: -9 + 9 = 0 9 + -1A + -18a + 2aA = 0 + 18a + -18a 9 + -1A + -18a + 2aA = 18a + -18a Combine like terms: 18a + -18a = 0 9 + -1A + -18a + 2aA = 0 The solution to this equation could not be determined.
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