-3(2a-4)=18

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Solution for -3(2a-4)=18 equation: 



-3(2a-4)=18

We move all terms to the left:

-3(2a-4)-(18)=0

We multiply parentheses

-6a+12-18=0

We add all the numbers together, and all the variables

-6a-6=0

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

-6a=6

a=6/-6

a=-1

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