-3(u-84)=-9

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Solution for -3(u-84)=-9 equation: 



-3(u-84)=-9

We move all terms to the left:

-3(u-84)-(-9)=0

We add all the numbers together, and all the variables

-3(u-84)+9=0

We multiply parentheses

-3u+252+9=0

We add all the numbers together, and all the variables

-3u+261=0

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

-3u=-261

u=-261/-3

u=+87

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