9=-1+8.8u

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Solution for 9=-1+8.8u equation:



9=-1+8.8u
We move all terms to the left:
9-(-1+8.8u)=0
We add all the numbers together, and all the variables
-(8.8u-1)+9=0
We get rid of parentheses
-8.8u+1+9=0
We add all the numbers together, and all the variables
-8.8u+10=0
We move all terms containing u to the left, all other terms to the right
-8.8u=-10
u=-10/-8.8
u=1+1/7.3333333333333

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