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3. Suppose Consumption = .6 (Y-T); Investment = 500/r; Real Money Demand = (10Y)/ r; the money supply is 1000 and the Price Level is 2. Let G-T=0. a. Find the equation for the IS curve. b.. Find the equation for the LM curve. c. What are the equilibrium values of Y and r? d.. Suppose the Fed increases the money supply to 2000. Find the new equilibrium values of Y and r