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Simplifying 2.5x2 + -5b + -420 = 0 Reorder the terms: -420 + -5b + 2.5x2 = 0 Solving -420 + -5b + 2.5x2 = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '420' to each side of the equation. -420 + -5b + 420 + 2.5x2 = 0 + 420 Reorder the terms: -420 + 420 + -5b + 2.5x2 = 0 + 420 Combine like terms: -420 + 420 = 0 0 + -5b + 2.5x2 = 0 + 420 -5b + 2.5x2 = 0 + 420 Combine like terms: 0 + 420 = 420 -5b + 2.5x2 = 420 Add '-2.5x2' to each side of the equation. -5b + 2.5x2 + -2.5x2 = 420 + -2.5x2 Combine like terms: 2.5x2 + -2.5x2 = 0.0 -5b + 0.0 = 420 + -2.5x2 -5b = 420 + -2.5x2 Divide each side by '-5'. b = -84 + 0.5x2 Simplifying b = -84 + 0.5x2
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