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Simplifying (a + -1)(b + 2) = 0 Reorder the terms: (-1 + a)(b + 2) = 0 Reorder the terms: (-1 + a)(2 + b) = 0 Multiply (-1 + a) * (2 + b) (-1(2 + b) + a(2 + b)) = 0 ((2 * -1 + b * -1) + a(2 + b)) = 0 ((-2 + -1b) + a(2 + b)) = 0 (-2 + -1b + (2 * a + b * a)) = 0 (-2 + -1b + (2a + ab)) = 0 Reorder the terms: (-2 + 2a + ab + -1b) = 0 (-2 + 2a + ab + -1b) = 0 Solving -2 + 2a + ab + -1b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2a + ab + 2 + -1b = 0 + 2 Reorder the terms: -2 + 2 + 2a + ab + -1b = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 2a + ab + -1b = 0 + 2 2a + ab + -1b = 0 + 2 Combine like terms: 0 + 2 = 2 2a + ab + -1b = 2 Add 'b' to each side of the equation. 2a + ab + -1b + b = 2 + b Combine like terms: -1b + b = 0 2a + ab + 0 = 2 + b 2a + ab = 2 + b Reorder the terms: -2 + 2a + ab + -1b = 2 + b + -2 + -1b Reorder the terms: -2 + 2a + ab + -1b = 2 + -2 + b + -1b Combine like terms: 2 + -2 = 0 -2 + 2a + ab + -1b = 0 + b + -1b -2 + 2a + ab + -1b = b + -1b Combine like terms: b + -1b = 0 -2 + 2a + ab + -1b = 0 The solution to this equation could not be determined.
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