2u+45=8u-9

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Solution for 2u+45=8u-9 equation: 



2u+45=8u-9

We move all terms to the left:

2u+45-(8u-9)=0

We get rid of parentheses

2u-8u+9+45=0

We add all the numbers together, and all the variables

-6u+54=0

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

-6u=-54

u=-54/-6

u=+9

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