Respuesta:
20 soles
Explicación paso a paso:
tengo x soles..
x + 2 (40 - x) = 60
x + 80 - 2x = 60
80 -x = 60
20 = x
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Verified answer
Respuesta:
20 soles
Explicación paso a paso:
tengo x soles..
x + 2 (40 - x) = 60
x + 80 - 2x = 60
80 -x = 60
20 = x