How to solve this math problem 3(y-9)=30

Question

3(y-9)=30

Answer 1

3(y - 9) = 30

 

Divide by 3 on both sides and get

 

y - 9 = 10

 

Add 9 to both sides and get

 

y = 19

 

Test it:  Is 3(y - 9) = 30?

 

3(19 - 9) = 3(10) = 30 [good]