Question

5x - 13 + [9 - 3/2 ] = 1

Answer 1

5x-13+(9-3/2)=1
5x-13+9-3/2=1
5x=1+13-9+3/2
5x=5+3/2
5x=13/2
x=13/10
x=1,3   :)

Answer 2

Resolver.

5x - 13 + [9 - 3/2] = 1
5x - 13 + [18/2 - 3/2] = 1
5x - 13 + [15/2] = 1
5x - 13 + 15/2 = 1
5x = 1 + 13 - 15/2
5x = 14 - 15/2
5x = 28/2 - 15/2 =
5x = 13/2
x = 13/(2 * 5)  Simplificas el 5
x = 13/10

Respuesta.
x = 13/10