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Simplifying (3 + -1a) * x = b Reorder the terms for easier multiplication: x(3 + -1a) = b (3 * x + -1a * x) = b Reorder the terms: (-1ax + 3x) = b (-1ax + 3x) = b Solving -1ax + 3x = b Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-3x' to each side of the equation. -1ax + 3x + -3x = b + -3x Combine like terms: 3x + -3x = 0 -1ax + 0 = b + -3x -1ax = b + -3x Divide each side by '-1x'. a = -1bx-1 + 3 Simplifying a = -1bx-1 + 3 Reorder the terms: a = 3 + -1bx-1
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