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Simplifying b + 20 = 2b Reorder the terms: 20 + b = 2b Solving 20 + b = 2b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-2b' to each side of the equation. 20 + b + -2b = 2b + -2b Combine like terms: b + -2b = -1b 20 + -1b = 2b + -2b Combine like terms: 2b + -2b = 0 20 + -1b = 0 Add '-20' to each side of the equation. 20 + -20 + -1b = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -1b = 0 + -20 -1b = 0 + -20 Combine like terms: 0 + -20 = -20 -1b = -20 Divide each side by '-1'. b = 20 Simplifying b = 20
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