3(u-57)=69

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Solution for 3(u-57)=69 equation: 



3(u-57)=69

We move all terms to the left:

3(u-57)-(69)=0

We multiply parentheses

3u-171-69=0

We add all the numbers together, and all the variables

3u-240=0

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

3u=240

u=240/3

u=80

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