Just doing one! Here's my problem: x-y-11 x-3y=1
So when you subsitute everything it should look like this: 1y-11-3y=1 (There needs to be a one in front of the y because it's just always been there. they don't always put it in the eqation.) You need to + the 11 and you have to do that to each side. So... 1y-11-3=1
+11 +11
Now it should look like this: 1y-3y=12
Combine the 1y and -3y to get -4y=12 Last step is divide -4y and 12 by 4 . Answer is y=3
