Equation check

[Macg73]

Hi, I need to rearrange this equation to make x the subject.

 

6y = 9 - 3x

 

So far I have added 3x to both sides

 

6y + 3x = 9 -3x + 3x

 

Then I have cancelled the 3x"s on the right hand side

 

6y + 3x = 9

 

Here is where i become a little stuck, I assume that I need to divide the equation by 3 to give the final result

 

x = 2y + 3

 

What I am unsure of is how to limk the previous two equations, any help would be appreciated, thanks.

[theCPE]

6y = 9 - 3x

 

- add 3x

 

6y + 3x = 9

 

- divide by 3

 

2y + x = 3

 

- subtract 2y

 

x = 3 - 2y

 

Should be - 2y not + 2y in final line.

[Macg73]

Many thanks for your help