9=u-71/2

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Solution for 9=u-71/2 equation: 



9=u-71/2

We move all terms to the left:

9-(u-71/2)=0

We add all the numbers together, and all the variables

-(+u-71/2)+9=0

We get rid of parentheses

-u+9+71/2=0

We multiply all the terms by the denominator


-u*2+71+9*2=0

We add all the numbers together, and all the variables

-u*2+89=0

Wy multiply elements

-2u+89=0

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

-2u=-89

u=-89/-2

u=44+1/2

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