Looking for electrical engineer who can solve this.

Please do not make any mistake ,which would not be useful.

(Required Handwritten solution )

R1 WW a + R2 R3 RA Us 6 Vs = 3.0 V; is = 2.2 mA R1 = 30.0 kQ ; R2 = 4.0 ko; R3 = 16.8 ko ; R4 = 16.0 kQ I Find the Thevenin equivalent with respect to the terminals a and b for the given circuit. Show all your work, do not skip steps. Displaying only the final answer is not enough to get credit