Respuesta :

1.=9 5.=14 9.=8 13.=120
1) 7a = 63
a = 63/7 = 9

5) 3v = 42
v = 42/3 = 14

9) 15s = 120
s = 120/15 = 8

13) 72 = 0.6r
r = 72/0.6 = 720/6 = 120
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