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