3u+4u-5=9

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Solution for 3u+4u-5=9 equation: 



3u+4u-5=9

We move all terms to the left:

3u+4u-5-(9)=0

We add all the numbers together, and all the variables

7u-14=0

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

7u=14

u=14/7

u=2

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