4(4v+8)-5(-4v-5)=21

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Solution for 4(4v+8)-5(-4v-5)=21 equation: 



4(4v+8)-5(-4v-5)=21

We move all terms to the left:

4(4v+8)-5(-4v-5)-(21)=0

We multiply parentheses

16v+20v+32+25-21=0

We add all the numbers together, and all the variables

36v+36=0

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

36v=-36

v=-36/36

v=-1

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