The following is a system of simultaneous linear equations to allocate costs using the reciprocal method. Matrix algebra is not required. The following costs were incurred in three operating departments and three service departments in Westmoreland Company. Use of services by other departments is as follows. The equation for department P2 (final assembly) is: Multiple Choice P2=$782,000+0.25P2+0.15P3+0.20S2+0.20S3 P2=$782,000+0.20$1+0.50S2+0.15S3 P2=0.25S1+0.50S2+0.20S3 P2=$782,000+0.25S1+0.50S2+0.20S3