Respuesta:
4
Explicación paso a paso:
3x + 4 = 16
3x = 16 - 4
3x = 12
x = 12/3
x= 4
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Respuesta:
4
Explicación paso a paso:
3x + 4 = 16
3x = 16 - 4
3x = 12
x = 12/3
x= 4