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Simplifying 21b + -15 = 0 Reorder the terms: -15 + 21b = 0 Solving -15 + 21b = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + 21b = 0 + 15 Combine like terms: -15 + 15 = 0 0 + 21b = 0 + 15 21b = 0 + 15 Combine like terms: 0 + 15 = 15 21b = 15 Divide each side by '21'. b = 0.7142857143 Simplifying b = 0.7142857143
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