2u+42=8u-12

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Solution for 2u+42=8u-12 equation: 



2u+42=8u-12

We move all terms to the left:

2u+42-(8u-12)=0

We get rid of parentheses

2u-8u+12+42=0

We add all the numbers together, and all the variables

-6u+54=0

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

-6u=-54

u=-54/-6

u=+9

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