Example

Solving n−0.63=−4.2n - 0.63 = -4.2 Using the Addition Property

Solving the equation n−0.63=−4.2n - 0.63 = -4.2 involves isolating the variable nn and working with decimals. First, apply the Addition Property of Equality by adding {0.63} to both sides, which gives n−0.63+0.63=−4.2+0.63n - 0.63 + 0.63 = -4.2 + 0.63. This simplifies the left side to nn. Adding the decimals on the right side yields n=−3.57n = -3.57. To check the solution, substitute −3.57{-3.57} back into the original equation for nn, which gives −3.57−0.63=−4.2-3.57 - 0.63 = -4.2. Subtracting on the left side produces −4.2=−4.2-4.2 = -4.2, a true statement confirming that n=−3.57n = -3.57 is the correct solution.

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Updated 2026-04-21

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