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Simplifying 84 = -12b + 12 Reorder the terms: 84 = 12 + -12b Solving 84 = 12 + -12b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '12b' to each side of the equation. 84 + 12b = 12 + -12b + 12b Combine like terms: -12b + 12b = 0 84 + 12b = 12 + 0 84 + 12b = 12 Add '-84' to each side of the equation. 84 + -84 + 12b = 12 + -84 Combine like terms: 84 + -84 = 0 0 + 12b = 12 + -84 12b = 12 + -84 Combine like terms: 12 + -84 = -72 12b = -72 Divide each side by '12'. b = -6 Simplifying b = -6
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