Respuesta :

Answer:

x = 12 and x = -9

Step-by-step explanation:

2x-20 = 4

2x = 24

x = 12

-2x = 18

x = -9

Answer:2x - 20 = 4 is x=12

-2x=18 is x=-9

Step-by-step explanation:

2x-20=4.             -2x/18

2x-20=4+20

2x/24