Help! Econ?

Question

Hey can anyone help me with this.I have been working on it,but can't figure it out.?

These are the equations given,and I need to find out the values,But somehow i am finding it very difficult.Hve been searching through notes and online...and am in a mess.I would really need help!! thank you...
Cd = 300 + 0.75 (Y-T)- 300r
T =100 + 0.2 Y
Id = 200 – 200r
L = 0.5Y – 500i
Y bar (ie. in long run)= 2500 ; G= 600 ; M=133,200 ; πe = 0.05 ; P bar = 120 ; i=r + πe ;
Find the short run and long run equilibrium values of Y, P , r , C, I and i.

Answer 1

In a case like this, first I solve for Y and then graph the equations.

This isn't something that you can just give a short answer.