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3x = -4+1
3x = -3
x = -3 / 3
x = -1
suerte saludos
3x + 1 + 4 = 0
3x + 5 = 0
3x = -5
x = -5/3 ----> Rta
Compruebas:
3x + 1 + 4 = 0
3(-5/3) + 1 + 4 = 0
-15/3 + 5 = 0
-5 + 5 = 0
0 = 0 --- La igualdad se cumple
Entonces podemos decir que el ejercicio esta resuelto correctamente.
RTA:
x = -5/3