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Simplifying 2a + b + -12 = 0 Reorder the terms: -12 + 2a + b = 0 Solving -12 + 2a + b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 2a + 12 + b = 0 + 12 Reorder the terms: -12 + 12 + 2a + b = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 2a + b = 0 + 12 2a + b = 0 + 12 Combine like terms: 0 + 12 = 12 2a + b = 12 Add '-1b' to each side of the equation. 2a + b + -1b = 12 + -1b Combine like terms: b + -1b = 0 2a + 0 = 12 + -1b 2a = 12 + -1b Divide each side by '2'. a = 6 + -0.5b Simplifying a = 6 + -0.5b
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