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Simplifying -1b + -20 = 3b Reorder the terms: -20 + -1b = 3b Solving -20 + -1b = 3b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-3b' to each side of the equation. -20 + -1b + -3b = 3b + -3b Combine like terms: -1b + -3b = -4b -20 + -4b = 3b + -3b Combine like terms: 3b + -3b = 0 -20 + -4b = 0 Add '20' to each side of the equation. -20 + 20 + -4b = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -4b = 0 + 20 -4b = 0 + 20 Combine like terms: 0 + 20 = 20 -4b = 20 Divide each side by '-4'. b = -5 Simplifying b = -5
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