I have these equations 5/x - 2/y = 2 and 2/x + 3/y = 16.
Unfortunatly I have no work to show because I don't know where to start with unknows on the bottom.
Do you have to solve a system? Or are the two equations totally independent of each other? (I think the first one)
In case you mean a sytem it can be useful to do a substitution, let and let (and ), solve the system for a and b and afterwards do the back-substitution.
, because else you're diving by zero which is offcourse not possible (undefined).
If you use 'Plato's method' then make the sum of the two equations in the system therefore you'll get an equation in one variable which you can solve directly.
I will give you my solution:
Let and let therefore you can write the equation as:
If we substitute in one of the equations:
You can check your solutions by entering them into the sytem.