-u+18-15=4u+18

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Solution for -u+18-15=4u+18 equation: 



-u+18-15=4u+18

We move all terms to the left:

-u+18-15-(4u+18)=0

We add all the numbers together, and all the variables

-1u-(4u+18)+3=0

We get rid of parentheses

-1u-4u-18+3=0

We add all the numbers together, and all the variables

-5u-15=0

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

-5u=15

u=15/-5

u=-3

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