Respuesta:
Explicación paso a paso:
a)
24 = 2x
12 = x
b)
3x = 45
x = 15
c)
140 = 5x
28 = x
d)
39x = 117
x = 3
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Respuesta:
Explicación paso a paso:
a)
24 = 2x
12 = x
b)
3x = 45
x = 15
c)
140 = 5x
28 = x
d)
39x = 117
x = 3