3.8v-7.8v=-0.2

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Solution for 3.8v-7.8v=-0.2 equation: 



3.8v-7.8v=-0.2

We move all terms to the left:

3.8v-7.8v-(-0.2)=0

We add all the numbers together, and all the variables

-4v+0.2=0

We move all terms containing v to the left, all other terms to the right

-4v=-0.2

v=-0.2/-4

v=0.2/4

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