Finding V(out) of Operational Amplifier

[anol1258]

Homework Statement

Op Amp powered from +-20V DC. Find V(out) in Volts. All Resistances/Batteries given.

http://imageshack.us/a/img805/2803/photoup.png

Help would be much appreciated

 

[rude man]

Hint #1: V1 and V3 are obvious by inspection.

That leaves V0, V2, i1 and i2 as unknowns where i1 and i2 are the op amp output currents.

Write equations summing currents to zero at V0 thru V3. That's 4 equations and 4 unknowns. Stick the equations into your math software.