Respuesta:
Explicación paso a paso:
20*x = 2*100
20x=200
x= 200/20
x=10$
20*x=3*200
20x=600
x=600/20
x=30$
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Respuesta:
Explicación paso a paso:
20*x = 2*100
20x=200
x= 200/20
x=10$
20*x=3*200
20x=600
x=600/20
x=30$