Respuesta:
17
Explicación paso a paso:
3x -12 = 63
3x = 63 - 12
3x = 51
x = 51 / 3
x = 17
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Respuesta:
17
Explicación paso a paso:
3x -12 = 63
3x = 63 - 12
3x = 51
x = 51 / 3
x = 17