Respuesta :

2x+8=20
2x=20-8
2x=12
12/2=x
6=x
S1NGH

Answer:

x = 6

Step-by-step explanation:

2 ( x + 4 ) = 20

→ Expand brackets

2x + 8 = 20

→ Minus 8 from both sides

2x = 12

→ Divide both sides by 2

x = 6