30=9+3v-10v

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Solution for 30=9+3v-10v equation:



30=9+3v-10v
We move all terms to the left:
30-(9+3v-10v)=0
We add all the numbers together, and all the variables
-(-7v+9)+30=0
We get rid of parentheses
7v-9+30=0
We add all the numbers together, and all the variables
7v+21=0
We move all terms containing v to the left, all other terms to the right
7v=-21
v=-21/7
v=-3

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