13(1-x)=78

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Solution for 13(1-x)=78 equation: 



13(1-x)=78

We move all terms to the left:

13(1-x)-(78)=0

We add all the numbers together, and all the variables

13(-1x+1)-78=0

We multiply parentheses

-13x+13-78=0

We add all the numbers together, and all the variables

-13x-65=0

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

-13x=65

x=65/-13

x=-5

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