I have this system:
And I have to find the intersecting points of the two equations by using substitution and only substitution.
I solved the bottom equation for y getting . From there, this is how I progressed:
Combining like terms:
Pulling out a 3 gives me:
From here, I'm not sure what to do. Am I on the right track or am I doing this completely wrong? If the latter, please explain to me where I made an error so it doesn't happen again.