-8u+1=20-7u

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Solution for -8u+1=20-7u equation: 



-8u+1=20-7u

We move all terms to the left:

-8u+1-(20-7u)=0

We add all the numbers together, and all the variables

-8u-(-7u+20)+1=0

We get rid of parentheses

-8u+7u-20+1=0

We add all the numbers together, and all the variables

-1u-19=0

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

-u=19

u=19/-1

u=-19

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