Please find I₁,I₂, I₃ and I₄ using junction rule and loop rule from Kirchhoff's laws.

Values should be :

I₁ = 0.0068

I₂ = 0.027

I₃ = 0.033

I₄ = 0.054

RI = 2012 V, = 1. 5V + R 2 = 501 expected values I, = 0. 0068 12 = 0. 027 Iy - Is R 3 = 40 12 I3 = 0.033 Iy = 0.054 Ry = 305 + V2 = 3V