207=2(10s+9)+9

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Solution for 207=2(10s+9)+9 equation: 



207=2(10s+9)+9

We move all terms to the left:

207-(2(10s+9)+9)=0



We calculate terms in parentheses: -(2(10s+9)+9), so:

2(10s+9)+9

We multiply parentheses

20s+18+9

We add all the numbers together, and all the variables

20s+27

Back to the equation:

-(20s+27)



We get rid of parentheses

-20s-27+207=0

We add all the numbers together, and all the variables

-20s+180=0

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

-20s=-180

s=-180/-20

s=+9

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