7v-1=9v-13

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Solution for 7v-1=9v-13 equation: 



7v-1=9v-13

We move all terms to the left:

7v-1-(9v-13)=0

We get rid of parentheses

7v-9v+13-1=0

We add all the numbers together, and all the variables

-2v+12=0

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

-2v=-12

v=-12/-2

v=+6

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