-9.1=u/7+2.1

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Solution for -9.1=u/7+2.1 equation: 



-9.1=u/7+2.1

We move all terms to the left:

-9.1-(u/7+2.1)=0

We get rid of parentheses

-u/7-2.1-9.1=0

We multiply all the terms by the denominator


-u-(2.1)*7-(9.1)*7=0

We add all the numbers together, and all the variables

-1u-78.4=0

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

-u=78.4

u=78.4/-1

u=-78+0.40000000000001/1

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