Hi Abby,
These are the trickiest “in terms of” SAT problems. When we’re solving for a variable that occurs more than once in an equation, we want to move all of those variables to the same side of the equation, THEN factor that variable out. From there, we can divide.
In your problem, the steps would be as follows:
j – kx = jk + k
since we’re solving for k, we want to add kx to both sides of the equation first:
This will get us the following:
j = kx +jk+k
From here, we factor out a k from the right side of the equation:
j=k(x+j+1)
from here, we divide both sides by (x+j+1):
j/(x+j+1)=k
I hope that helps!
