Question

100 points!!! Pls help 9 + 10y = 21. What is the value of Y?

Answer 1

1.2

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!

Answer 2

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

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