Respuesta :

35x - 35 = 20x + 20
35x - 20x = 20 +35  
15x = 55 
X = 11/3
(x-1)/5 = (4x+4)/35

simplyfying them,
35x - 35 = 20x + 20
15x = 55
x = 11/3

hope this help