Efectúa : -18z – 20 + 15z = 10z – 3 + 12z – 39
a) 21/35
b) 24/15
c) 22/25
d) 25/22
a) 21/35
b) 24/15
c) 22/25
d) 25/22
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Respuesta:
sale 22/25
Explicación paso a paso: