3*3u-8=21

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Solution for 3*3u-8=21 equation: 



3*3u-8=21

We move all terms to the left:

3*3u-8-(21)=0

We add all the numbers together, and all the variables

3*3u-29=0

Wy multiply elements

9u-29=0

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

9u=29

u=29/9

u=3+2/9

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