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Simplifying 8 = -12 + -4a Solving 8 = -12 + -4a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4a' to each side of the equation. 8 + 4a = -12 + -4a + 4a Combine like terms: -4a + 4a = 0 8 + 4a = -12 + 0 8 + 4a = -12 Add '-8' to each side of the equation. 8 + -8 + 4a = -12 + -8 Combine like terms: 8 + -8 = 0 0 + 4a = -12 + -8 4a = -12 + -8 Combine like terms: -12 + -8 = -20 4a = -20 Divide each side by '4'. a = -5 Simplifying a = -5
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