-8(2a-9)=20-12a

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Solution for -8(2a-9)=20-12a equation: 



-8(2a-9)=20-12a

We move all terms to the left:

-8(2a-9)-(20-12a)=0

We add all the numbers together, and all the variables

-8(2a-9)-(-12a+20)=0

We multiply parentheses

-16a-(-12a+20)+72=0

We get rid of parentheses

-16a+12a-20+72=0

We add all the numbers together, and all the variables

-4a+52=0

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

-4a=-52

a=-52/-4

a=+13

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