Hi all this is my first post so please bear with me. In my uni work I have an equation to solve:

((V1-v20)/z1)-(v20/z4)+((v3-v20)/z5)+((v2-v20+v3)/z3)=0

The equation needs solving for v20. Now I have the correct answer but do not understand how the equation becomes:

(V1/z1)+(v3/z5)+(v2/z3)+(v3/z3)=v20[(1/z1)+(1/z4)+(1/z5)+(1/z3)]

Any help or clarification would be greatly appreciated.

((V1-v20)/z1)-(v20/z4)+((v3-v20)/z5)+((v2-v20+v3)/z3)=0

The equation needs solving for v20. Now I have the correct answer but do not understand how the equation becomes:

(V1/z1)+(v3/z5)+(v2/z3)+(v3/z3)=v20[(1/z1)+(1/z4)+(1/z5)+(1/z3)]

Any help or clarification would be greatly appreciated.

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