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Simplifying 9(a + 2) = a Reorder the terms: 9(2 + a) = a (2 * 9 + a * 9) = a (18 + 9a) = a Solving 18 + 9a = a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1a' to each side of the equation. 18 + 9a + -1a = a + -1a Combine like terms: 9a + -1a = 8a 18 + 8a = a + -1a Combine like terms: a + -1a = 0 18 + 8a = 0 Add '-18' to each side of the equation. 18 + -18 + 8a = 0 + -18 Combine like terms: 18 + -18 = 0 0 + 8a = 0 + -18 8a = 0 + -18 Combine like terms: 0 + -18 = -18 8a = -18 Divide each side by '8'. a = -2.25 Simplifying a = -2.25
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