Respuesta:
72
Explicación paso a paso:
3x - 55 = 233 - x
4x = 233 + 55
4x = 288
x = 288/4
x= 72
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Respuesta:
72
Explicación paso a paso:
3x - 55 = 233 - x
4x = 233 + 55
4x = 288
x = 288/4
x= 72