3(u+4)=7u-8

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Solution for 3(u+4)=7u-8 equation: 



3(u+4)=7u-8

We move all terms to the left:

3(u+4)-(7u-8)=0

We multiply parentheses

3u-(7u-8)+12=0

We get rid of parentheses

3u-7u+8+12=0

We add all the numbers together, and all the variables

-4u+20=0

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

-4u=-20

u=-20/-4

u=+5

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