Respuesta:
x = 3
Explicación paso a paso:
9x - 15 = 12
9x = 12 + 15
9x = 27
x = 27/9
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Respuesta:
x = 3
Explicación paso a paso:
9x - 15 = 12
9x = 12 + 15
9x = 27
x = 27/9
x = 3