(u+4)7=42

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Solution for (u+4)7=42 equation: 



(u+4)7=42

We move all terms to the left:

(u+4)7-(42)=0

We multiply parentheses

7u+28-42=0

We add all the numbers together, and all the variables

7u-14=0

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

7u=14

u=14/7

u=2

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