-2(6a-7)-5=81

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Solution for -2(6a-7)-5=81 equation: 



-2(6a-7)-5=81

We move all terms to the left:

-2(6a-7)-5-(81)=0

We add all the numbers together, and all the variables

-2(6a-7)-86=0

We multiply parentheses

-12a+14-86=0

We add all the numbers together, and all the variables

-12a-72=0

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

-12a=72

a=72/-12

a=-6

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