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Simplifying A2 + -9a + 20 = 0 Reorder the terms: 20 + A2 + -9a = 0 Solving 20 + A2 + -9a = 0 Solving for variable 'A'. Move all terms containing A to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + A2 + -20 + -9a = 0 + -20 Reorder the terms: 20 + -20 + A2 + -9a = 0 + -20 Combine like terms: 20 + -20 = 0 0 + A2 + -9a = 0 + -20 A2 + -9a = 0 + -20 Combine like terms: 0 + -20 = -20 A2 + -9a = -20 Add '9a' to each side of the equation. A2 + -9a + 9a = -20 + 9a Combine like terms: -9a + 9a = 0 A2 + 0 = -20 + 9a A2 = -20 + 9a Simplifying A2 = -20 + 9a Reorder the terms: 20 + A2 + -9a = -20 + 9a + 20 + -9a Reorder the terms: 20 + A2 + -9a = -20 + 20 + 9a + -9a Combine like terms: -20 + 20 = 0 20 + A2 + -9a = 0 + 9a + -9a 20 + A2 + -9a = 9a + -9a Combine like terms: 9a + -9a = 0 20 + A2 + -9a = 0 The solution to this equation could not be determined.
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