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Resolvemos :
x ( - 38) = - 342
- 38x = - 342
x = -342/-38
x = 9
Solución : El número es = 9
El numero = x
( - 38) * x = - 342
x = - 342/ - 38 Multiplicas signos - por - = +
x = 9
Respuesta.
Debes multiplicar a - 38 por el numero 9