10s-12-11s=20+s

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Solution for 10s-12-11s=20+s equation: 



10s-12-11s=20+s

We move all terms to the left:

10s-12-11s-(20+s)=0

We add all the numbers together, and all the variables

10s-11s-(s+20)-12=0

We add all the numbers together, and all the variables

-1s-(s+20)-12=0

We get rid of parentheses

-1s-s-20-12=0

We add all the numbers together, and all the variables

-2s-32=0

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

-2s=32

s=32/-2

s=-16

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