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Simplifying 8 = -4 + a Solving 8 = -4 + 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. 8 + -1a = -4 + a + -1a Combine like terms: a + -1a = 0 8 + -1a = -4 + 0 8 + -1a = -4 Add '-8' to each side of the equation. 8 + -8 + -1a = -4 + -8 Combine like terms: 8 + -8 = 0 0 + -1a = -4 + -8 -1a = -4 + -8 Combine like terms: -4 + -8 = -12 -1a = -12 Divide each side by '-1'. a = 12 Simplifying a = 12
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