V o − 0 1000 + .002 = 0 , V o = − 2 {\displaystyle {\frac {V_{o}-0}{1000}}+.002=0,V_{o}=-2}
V o − 5 3000 + .002 = 0 , V o = − 1 {\displaystyle {\frac {V_{o}-5}{3000}}+.002=0,V_{o}=-1}
V o − 0 15000 = 0 , V o = 0 {\displaystyle {\frac {V_{o}-0}{15000}}=0,V_{o}=0}
V o + 2 − 5 = 0 , V o = 3 {\displaystyle V_{o}+2-5=0,V_{o}=3\,}