Example

Solving x11=7x - 11 = 7 Using the Addition Property

After simplifying an equation to the form x11=7x - 11 = 7, the next step is to isolate the variable xx. To undo the subtraction of 11, apply the Addition Property of Equality by adding 11 to both sides of the equation: x11+11=7+11x - 11 + 11 = 7 + 11. This operation cancels out the subtraction on the left side, isolating xx, and updates the right side to 18, producing the final solution x=18x = 18.

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Updated 2026-04-21

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