10u-2u-9=3+5u

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Solution for 10u-2u-9=3+5u equation: 



10u-2u-9=3+5u

We move all terms to the left:

10u-2u-9-(3+5u)=0

We add all the numbers together, and all the variables

10u-2u-(5u+3)-9=0

We add all the numbers together, and all the variables

8u-(5u+3)-9=0

We get rid of parentheses

8u-5u-3-9=0

We add all the numbers together, and all the variables

3u-12=0

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

3u=12

u=12/3

u=4

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