5+3u=u-9

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



5+3u=u-9

We move all terms to the left:

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

We get rid of parentheses

3u-u+9+5=0

We add all the numbers together, and all the variables

2u+14=0

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

2u=-14

u=-14/2

u=-7

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