6(s+2)-21=9+15s

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Solution for 6(s+2)-21=9+15s equation:



6(s+2)-21=9+15s
We move all terms to the left:
6(s+2)-21-(9+15s)=0
We add all the numbers together, and all the variables
6(s+2)-(15s+9)-21=0
We multiply parentheses
6s-(15s+9)+12-21=0
We get rid of parentheses
6s-15s-9+12-21=0
We add all the numbers together, and all the variables
-9s-18=0
We move all terms containing s to the left, all other terms to the right
-9s=18
s=18/-9
s=-2

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