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El duplo = 2x
2 (x + 17) = 168
2x + 34 = 168
2x = 168 - 34
2x = 134
x = 134/2
x = 67
Respuesta :
El número es = 67
El numero = x
2( x + 17) = 168
2x + 17*2 = 168
2x + 34 = 168
2x = 168 - 34
2x = 134
x = 134/2
x = 67
Respuesta.
x = 67