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Simplifying (A + -9)(2a + 7) = 0 Reorder the terms: (-9 + A)(2a + 7) = 0 Reorder the terms: (-9 + A)(7 + 2a) = 0 Multiply (-9 + A) * (7 + 2a) (-9(7 + 2a) + A(7 + 2a)) = 0 ((7 * -9 + 2a * -9) + A(7 + 2a)) = 0 ((-63 + -18a) + A(7 + 2a)) = 0 (-63 + -18a + (7 * A + 2a * A)) = 0 (-63 + -18a + (7A + 2aA)) = 0 Reorder the terms: (-63 + 7A + -18a + 2aA) = 0 (-63 + 7A + -18a + 2aA) = 0 Solving -63 + 7A + -18a + 2aA = 0 Solving for variable 'A'. Move all terms containing A to the left, all other terms to the right. Add '63' to each side of the equation. -63 + 7A + -18a + 63 + 2aA = 0 + 63 Reorder the terms: -63 + 63 + 7A + -18a + 2aA = 0 + 63 Combine like terms: -63 + 63 = 0 0 + 7A + -18a + 2aA = 0 + 63 7A + -18a + 2aA = 0 + 63 Combine like terms: 0 + 63 = 63 7A + -18a + 2aA = 63 Add '18a' to each side of the equation. 7A + -18a + 18a + 2aA = 63 + 18a Combine like terms: -18a + 18a = 0 7A + 0 + 2aA = 63 + 18a 7A + 2aA = 63 + 18a Reorder the terms: -63 + 7A + -18a + 2aA = 63 + 18a + -63 + -18a Reorder the terms: -63 + 7A + -18a + 2aA = 63 + -63 + 18a + -18a Combine like terms: 63 + -63 = 0 -63 + 7A + -18a + 2aA = 0 + 18a + -18a -63 + 7A + -18a + 2aA = 18a + -18a Combine like terms: 18a + -18a = 0 -63 + 7A + -18a + 2aA = 0 The solution to this equation could not be determined.
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