(Solved): Compute the current labeled \( \mathbf{I} \) in the circuit shown above. Given \( V_{1}=9 V_{1} V_{ ...

Compute the current labeled \( \mathbf{I} \) in the circuit shown above. Given \( V_{1}=9 V_{1} V_{2}=12 V_{\text {, }} \) \( I_{1}=1 m A, I_{2}=3 m A, R_{1}=1 k \Omega, R_{2}=2 k \Omega, R_{3}=5 k \Omega, R_{4}=10 k \Omega \) \( R_{5}=10 k \Omega \)