-12u+18+18u=-18-6u

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Solution for -12u+18+18u=-18-6u equation: 



-12u+18+18u=-18-6u

We move all terms to the left:

-12u+18+18u-(-18-6u)=0

We add all the numbers together, and all the variables

-12u+18u-(-6u-18)+18=0

We add all the numbers together, and all the variables

6u-(-6u-18)+18=0

We get rid of parentheses

6u+6u+18+18=0

We add all the numbers together, and all the variables

12u+36=0

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

12u=-36

u=-36/12

u=-3

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