Example

Simplifying 39x+(92x)+(39x)39x + (-92x) + (-39x)

To simplify the expression 39x+(92x)+(39x)39x + (-92x) + (-39x), identify that the first and third terms are opposites. Reorder the terms using the commutative property of addition to group the opposites: 39x+(39x)+(92x)39x + (-39x) + (-92x). The sum of the opposites is 00, which reduces the expression to 0+(92x)0 + (-92x). Adding 00 leaves the remaining term unchanged, resulting in 92x-92x.

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Updated 2026-05-02

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