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0.15v-3=4.2
We move all terms to the left:
0.15v-3-(4.2)=0
We add all the numbers together, and all the variables
0.15v-7.2=0
We move all terms containing v to the left, all other terms to the right
0.15v=7.2
v=7.2/0.15
v=48+8.8817841970013E-16/0.15
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