Las niñas les duele la cabeza.
Nosotros nos duelo la cabeza.
A ellas les duela las cabezas.
Está empezando a dolerme la cabeza.
John me llama todos los días.
Cada mes yo <u><em>ahorro </em></u>15.000 pesos
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Explanation:
That is false. Integers that are opposites of each other are what are known as additive inverses, which means that numbers that are the same, but opposite signs, always result in 0:
Ex: -100, 100
These result in 0.
I am joyous to assist you anytime.
* You posted this under the incorrect subject by the way. This is mathematics.