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Simplifying 30 = 8(2 + -1a) 30 = (2 * 8 + -1a * 8) 30 = (16 + -8a) Solving 30 = 16 + -8a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '8a' to each side of the equation. 30 + 8a = 16 + -8a + 8a Combine like terms: -8a + 8a = 0 30 + 8a = 16 + 0 30 + 8a = 16 Add '-30' to each side of the equation. 30 + -30 + 8a = 16 + -30 Combine like terms: 30 + -30 = 0 0 + 8a = 16 + -30 8a = 16 + -30 Combine like terms: 16 + -30 = -14 8a = -14 Divide each side by '8'. a = -1.75 Simplifying a = -1.75
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