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Simplifying -2(a + 3) = -4 Reorder the terms: -2(3 + a) = -4 (3 * -2 + a * -2) = -4 (-6 + -2a) = -4 Solving -6 + -2a = -4 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -2a = -4 + 6 Combine like terms: -6 + 6 = 0 0 + -2a = -4 + 6 -2a = -4 + 6 Combine like terms: -4 + 6 = 2 -2a = 2 Divide each side by '-2'. a = -1 Simplifying a = -1
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