(u+4)=7

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Solution for (u+4)=7 equation: 



(u+4)=7

We move all terms to the left:

(u+4)-(7)=0

We get rid of parentheses

u+4-7=0

We add all the numbers together, and all the variables

u-3=0

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

u=3

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