3u-8=4u

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Solution for 3u-8=4u equation: 



3u-8=4u

We move all terms to the left:

3u-8-(4u)=0

We add all the numbers together, and all the variables

-1u-8=0

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

-u=8

u=8/-1

u=-8

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