Answer:
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!
y = 6/5 = 1 1/5 = 1.2
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
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