-13(a-1)=13

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Solution for -13(a-1)=13 equation: 



-13(a-1)=13

We move all terms to the left:

-13(a-1)-(13)=0

We multiply parentheses

-13a+13-13=0

We add all the numbers together, and all the variables

-13a=0

a=0/-13

a=0

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