Respuesta :

Answer:

x=8

Step-by-step explanation:

80 + 10x = 20x

        -10x   -10x

subtract 10 x from both sides (always do to both sides)

80=10x

divide both sides by 10

80/10 = 8

10x/10 = x

x=8

Answer:

x=8

Step-by-step explanation:

80+10x=0+20x

you have to subtract 20 from ten which is 10 and then you devide 80 by 10x which is x=8