# Algebra check+help?

posted by
**Allyson**
.

For problems 1 and 2 write Y as a function of X

1) 12=9x+3y

- I think you would subtract 9 from the 12.. but I'm not really sure because you can't add/subtract x's and y's from regular numbers.

2) -2x+3y=9

Same problem as above..

Can someone please explain to me how to do these problems?!

Thank you.

-Allyson