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## Homework Statement

Use mesh current to solver for iΔ

## Homework Equations

v1+v2+... vn=0

i=v/R

## The Attempt at a Solution

5mA+15.4*i1-5.4i2=0

9.1*i2+5.42*i1-150iΔ=0

Now I have two equations and three unknowns and I'm unsure how I should proceed. Also, how do I tell what polarity the individual currents are, assuming my reference is a clockwise voltage?