-1a/9=-13

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Solution for -1a/9=-13 equation: 



-1a/9=-13

We move all terms to the left:

-1a/9-(-13)=0

We add all the numbers together, and all the variables

-1a/9+13=0

We multiply all the terms by the denominator


-1a+13*9=0

We add all the numbers together, and all the variables

-1a+117=0

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

-a=-117

a=-117/-1

a=+117

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