In the circuit shown, R1 = 5 Ω ,R2 = 10 Ω , and R3 = 15 Ω, and ε1 = 10 V, and ε2 = 15 V. Using Kirchhoff's loop and junction laws, determine the currents I1, I2, and I3 flowing through R1, R2, and R3, respectively, where the direction of each current is as indicated in the figure.

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