11-3(a-2)=20

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Solution for 11-3(a-2)=20 equation: 



11-3(a-2)=20

We move all terms to the left:

11-3(a-2)-(20)=0

We add all the numbers together, and all the variables

-3(a-2)-9=0

We multiply parentheses

-3a+6-9=0

We add all the numbers together, and all the variables

-3a-3=0

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

-3a=3

a=3/-3

a=-1

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