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Simplifying 4.2 = 2.1n Solving 4.2 = 2.1n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2.1n' to each side of the equation. 4.2 + -2.1n = 2.1n + -2.1n Combine like terms: 2.1n + -2.1n = 0.0 4.2 + -2.1n = 0.0 Add '-4.2' to each side of the equation. 4.2 + -4.2 + -2.1n = 0.0 + -4.2 Combine like terms: 4.2 + -4.2 = 0.0 0.0 + -2.1n = 0.0 + -4.2 -2.1n = 0.0 + -4.2 Combine like terms: 0.0 + -4.2 = -4.2 -2.1n = -4.2 Divide each side by '-2.1'. n = 2 Simplifying n = 2
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