7(u-1)=-77

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Solution for 7(u-1)=-77 equation: 



7(u-1)=-77

We move all terms to the left:

7(u-1)-(-77)=0

We add all the numbers together, and all the variables

7(u-1)+77=0

We multiply parentheses

7u-7+77=0

We add all the numbers together, and all the variables

7u+70=0

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

7u=-70

u=-70/7

u=-10

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