Anyone help me solve these so that x is the subject
x ² = 7y
x ² + v = w
x ² divided by 3 = w+y
I need to isolate the term with in it. I can do this by subtracting from both sides to give:
And now, I just need to take the square root to obtain:
Note that it should ideally be , but I think that's running before we can walk.
Try the others for yourself and show your working if you get confused: it's very similar to this example.