198=-9(-9+x)

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Solution for 198=-9(-9+x) equation: 



198=-9(-9+x)

We move all terms to the left:

198-(-9(-9+x))=0

We add all the numbers together, and all the variables

-(-9(x-9))+198=0



We calculate terms in parentheses: -(-9(x-9)), so:

-9(x-9)

We multiply parentheses

-9x+81

Back to the equation:

-(-9x+81)



We get rid of parentheses

9x-81+198=0

We add all the numbers together, and all the variables

9x+117=0

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

9x=-117

x=-117/9

x=-13

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