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Simplifying 21 = 0.70n Solving 21 = 0.70n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.70n' to each side of the equation. 21 + -0.70n = 0.70n + -0.70n Combine like terms: 0.70n + -0.70n = 0.00 21 + -0.70n = 0.00 Add '-21' to each side of the equation. 21 + -21 + -0.70n = 0.00 + -21 Combine like terms: 21 + -21 = 0 0 + -0.70n = 0.00 + -21 -0.70n = 0.00 + -21 Combine like terms: 0.00 + -21 = -21 -0.70n = -21 Divide each side by '-0.70'. n = 30 Simplifying n = 30
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