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Simplifying b + 6.6b + 90 + b + 45 + 2b + -90 = 540 Reorder the terms: 90 + 45 + -90 + b + 6.6b + b + 2b = 540 Combine like terms: 90 + 45 = 135 135 + -90 + b + 6.6b + b + 2b = 540 Combine like terms: 135 + -90 = 45 45 + b + 6.6b + b + 2b = 540 Combine like terms: b + 6.6b = 7.6b 45 + 7.6b + b + 2b = 540 Combine like terms: 7.6b + b = 8.6b 45 + 8.6b + 2b = 540 Combine like terms: 8.6b + 2b = 10.6b 45 + 10.6b = 540 Solving 45 + 10.6b = 540 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-45' to each side of the equation. 45 + -45 + 10.6b = 540 + -45 Combine like terms: 45 + -45 = 0 0 + 10.6b = 540 + -45 10.6b = 540 + -45 Combine like terms: 540 + -45 = 495 10.6b = 495 Divide each side by '10.6'. b = 46.69811321 Simplifying b = 46.69811321
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