198=-6(3+6a)

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Solution for 198=-6(3+6a) equation: 



198=-6(3+6a)

We move all terms to the left:

198-(-6(3+6a))=0

We add all the numbers together, and all the variables

-(-6(6a+3))+198=0



We calculate terms in parentheses: -(-6(6a+3)), so:

-6(6a+3)

We multiply parentheses

-36a-18

Back to the equation:

-(-36a-18)



We get rid of parentheses

36a+18+198=0

We add all the numbers together, and all the variables

36a+216=0

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

36a=-216

a=-216/36

a=-6

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