3u=8+7u

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Solution for 3u=8+7u equation: 



3u=8+7u

We move all terms to the left:

3u-(8+7u)=0

We add all the numbers together, and all the variables

3u-(7u+8)=0

We get rid of parentheses

3u-7u-8=0

We add all the numbers together, and all the variables

-4u-8=0

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

-4u=8

u=8/-4

u=-2

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