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Simplifying -2(b + -4) = 12 + b Reorder the terms: -2(-4 + b) = 12 + b (-4 * -2 + b * -2) = 12 + b (8 + -2b) = 12 + b Solving 8 + -2b = 12 + b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1b' to each side of the equation. 8 + -2b + -1b = 12 + b + -1b Combine like terms: -2b + -1b = -3b 8 + -3b = 12 + b + -1b Combine like terms: b + -1b = 0 8 + -3b = 12 + 0 8 + -3b = 12 Add '-8' to each side of the equation. 8 + -8 + -3b = 12 + -8 Combine like terms: 8 + -8 = 0 0 + -3b = 12 + -8 -3b = 12 + -8 Combine like terms: 12 + -8 = 4 -3b = 4 Divide each side by '-3'. b = -1.333333333 Simplifying b = -1.333333333
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