-42=5u-12

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Solution for -42=5u-12 equation: 



-42=5u-12

We move all terms to the left:

-42-(5u-12)=0

We get rid of parentheses

-5u+12-42=0

We add all the numbers together, and all the variables

-5u-30=0

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

-5u=30

u=30/-5

u=-6

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