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Simplifying 81 = 9b Solving 81 = 9b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-9b' to each side of the equation. 81 + -9b = 9b + -9b Combine like terms: 9b + -9b = 0 81 + -9b = 0 Add '-81' to each side of the equation. 81 + -81 + -9b = 0 + -81 Combine like terms: 81 + -81 = 0 0 + -9b = 0 + -81 -9b = 0 + -81 Combine like terms: 0 + -81 = -81 -9b = -81 Divide each side by '-9'. b = 9 Simplifying b = 9
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