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Simplifying 20 = 2b + -7 Reorder the terms: 20 = -7 + 2b Solving 20 = -7 + 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 + -2b = -7 + 2b + -2b Combine like terms: 2b + -2b = 0 20 + -2b = -7 + 0 20 + -2b = -7 Add '-20' to each side of the equation. 20 + -20 + -2b = -7 + -20 Combine like terms: 20 + -20 = 0 0 + -2b = -7 + -20 -2b = -7 + -20 Combine like terms: -7 + -20 = -27 -2b = -27 Divide each side by '-2'. b = 13.5 Simplifying b = 13.5
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