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Simplifying -4.5(1 + -2a) = -24.5 (1 * -4.5 + -2a * -4.5) = -24.5 (-4.5 + 9a) = -24.5 Solving -4.5 + 9a = -24.5 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + 9a = -24.5 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + 9a = -24.5 + 4.5 9a = -24.5 + 4.5 Combine like terms: -24.5 + 4.5 = -20 9a = -20 Divide each side by '9'. a = -2.222222222 Simplifying a = -2.222222222
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