Respuesta:
30
Explicación paso a paso:
Solo utilizamos la formula
x+20 + 50 = 40 + 60
x + 70 = 100
x = 30
Coronita pls <3
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Respuesta:
30
Explicación paso a paso:
Solo utilizamos la formula
x+20 + 50 = 40 + 60
x + 70 = 100
x = 30
Coronita pls <3