Respuesta :

Answer:

9

Step-by-step explanation:

-20+3y=7

3y=27

y=9

Answer:

y=9

Step-by-step explanation:

replace all x with -20:

3y-20=7

Move the -20 to the other side by adding 20 on both sides:

3y-20+20=7+20

Simplify:

y=9

Hope this helps!