A balanced -connected load, with Z = 9.0 30 , and a balanced Y-connected load,

A balanced Δ-connected load, with Z_Δ = 9.0 ∠ −30° , and a balanced Y-connected load, with Z_Y = 5.0 ∠ 45° Ω, are supplied by the same three-phase, ABC system, with effective line voltage 480 V. Obtain the line currents, using the single-line equivalent method.