my algebra teacher barely speeks a word of english and her way of explaining things is difficult to understand, so i thought i'd ask u guys!

I tried and this is what i got!

Find value of X

X + X/10 = 3Y - X

2X + X/10 = 3Y

2X + X = 30Y

3X = 30Y

X = 3Y

is that correct?? because my teacher says it isnt, but i dont understand where i went wrong! :S

thanx a million!!