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Simplifying 3a + -1(2a + -1) = -2 Reorder the terms: 3a + -1(-1 + 2a) = -2 3a + (-1 * -1 + 2a * -1) = -2 3a + (1 + -2a) = -2 Reorder the terms: 1 + 3a + -2a = -2 Combine like terms: 3a + -2a = 1a 1 + 1a = -2 Solving 1 + 1a = -2 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 1a = -2 + -1 Combine like terms: 1 + -1 = 0 0 + 1a = -2 + -1 1a = -2 + -1 Combine like terms: -2 + -1 = -3 1a = -3 Divide each side by '1'. a = -3 Simplifying a = -3
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