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Simplifying -4.2 = -1n + 2.4n Combine like terms: -1n + 2.4n = 1.4n -4.2 = 1.4n Solving -4.2 = 1.4n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1.4n' to each side of the equation. -4.2 + -1.4n = 1.4n + -1.4n Combine like terms: 1.4n + -1.4n = 0.0 -4.2 + -1.4n = 0.0 Add '4.2' to each side of the equation. -4.2 + 4.2 + -1.4n = 0.0 + 4.2 Combine like terms: -4.2 + 4.2 = 0.0 0.0 + -1.4n = 0.0 + 4.2 -1.4n = 0.0 + 4.2 Combine like terms: 0.0 + 4.2 = 4.2 -1.4n = 4.2 Divide each side by '-1.4'. n = -3 Simplifying n = -3
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