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Simplifying 3a + -15 = -27 Reorder the terms: -15 + 3a = -27 Solving -15 + 3a = -27 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + 3a = -27 + 15 Combine like terms: -15 + 15 = 0 0 + 3a = -27 + 15 3a = -27 + 15 Combine like terms: -27 + 15 = -12 3a = -12 Divide each side by '3'. a = -4 Simplifying a = -4
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