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Simplifying -1(a + 2) = -1(2a + 8) Reorder the terms: -1(2 + a) = -1(2a + 8) (2 * -1 + a * -1) = -1(2a + 8) (-2 + -1a) = -1(2a + 8) Reorder the terms: -2 + -1a = -1(8 + 2a) -2 + -1a = (8 * -1 + 2a * -1) -2 + -1a = (-8 + -2a) Solving -2 + -1a = -8 + -2a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '2a' to each side of the equation. -2 + -1a + 2a = -8 + -2a + 2a Combine like terms: -1a + 2a = 1a -2 + 1a = -8 + -2a + 2a Combine like terms: -2a + 2a = 0 -2 + 1a = -8 + 0 -2 + 1a = -8 Add '2' to each side of the equation. -2 + 2 + 1a = -8 + 2 Combine like terms: -2 + 2 = 0 0 + 1a = -8 + 2 1a = -8 + 2 Combine like terms: -8 + 2 = -6 1a = -6 Divide each side by '1'. a = -6 Simplifying a = -6
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