Respuesta :
s = 4t - 7
s + 7 = 4t - 7 + 7
s + 7 = 4t
4 4
1/4s + 1 3/4 = t
s = 4(1/4s + 1 3/4) - 7
s = s + 7 - 7
s = s + 0
s = s
s + 7 = 4t - 7 + 7
s + 7 = 4t
4 4
1/4s + 1 3/4 = t
s = 4(1/4s + 1 3/4) - 7
s = s + 7 - 7
s = s + 0
s = s