Respuesta :

osikbro

Answer:

1.2

Step-by-step explanation:

9+10y=21

Subtract 9 from both sides:

10y=21-9=12

Divide both sides by 10 to isolate y:

y=1.2

Hope this helps!

wegnerkolmp2741o

Answer:

y = 6/5 = 1 1/5 = 1.2

Step-by-step explanation:

9 + 10y = 21

Subtract 9 from each side

9-9 + 10y = 21-9

10 y = 12

Divide each side by 10

10y/10 = 12/10

y = 6/5

y = 1.2