5(u+3)-7u=7

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Solution for 5(u+3)-7u=7 equation: 



5(u+3)-7u=7

We move all terms to the left:

5(u+3)-7u-(7)=0

We add all the numbers together, and all the variables

-7u+5(u+3)-7=0

We multiply parentheses

-7u+5u+15-7=0

We add all the numbers together, and all the variables

-2u+8=0

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

-2u=-8

u=-8/-2

u=+4

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