-20=-10+v/2

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Solution for -20=-10+v/2 equation: 



-20=-10+v/2

We move all terms to the left:

-20-(-10+v/2)=0

We add all the numbers together, and all the variables

-(v/2-10)-20=0

We get rid of parentheses

-v/2+10-20=0

We multiply all the terms by the denominator


-v+10*2-20*2=0

We add all the numbers together, and all the variables

-1v-20=0

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

-v=20

v=20/-1

v=-20

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