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Simplifying 126 = 21b Solving 126 = 21b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-21b' to each side of the equation. 126 + -21b = 21b + -21b Combine like terms: 21b + -21b = 0 126 + -21b = 0 Add '-126' to each side of the equation. 126 + -126 + -21b = 0 + -126 Combine like terms: 126 + -126 = 0 0 + -21b = 0 + -126 -21b = 0 + -126 Combine like terms: 0 + -126 = -126 -21b = -126 Divide each side by '-21'. b = 6 Simplifying b = 6
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