how do you do formulae?
for example it says make x the subject and the formulae is like:
2=y-4x
i get really confused with questions like that
Do it step by step.
Take the other variable to one side so you only have the variable that you want to make the subject on one side. In this case is the other variable so we'll move it to the LHS.
Divide by the number in front of the variable that you want to make the subject. In this case .