1. Resuelve las siguientes ecuaciones aditivas
x – 5 = 90
x + 2 = 15
x – 1 245 = 2 980
x – 5 = 90
x + 2 = 15
x – 1 245 = 2 980
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Respuesta:
x=95
x=13
x=80
Explicación paso a paso:
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