Respuesta :

A. x = - 2
B. x = - 2
Tucon

 

a)

1x - 5 = 3x - 1

3x - 1x = 1 - 5

2x = -4

x = -4/2

x = -2

b)

2x + 3 = 4x + 7

4x - 2x = 3 - 7

2x = -4

x = -4/2

x = -2