15-2s=9

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Solution for 15-2s=9 equation:



15-2s=9
We move all terms to the left:
15-2s-(9)=0
We add all the numbers together, and all the variables
-2s+6=0
We move all terms containing s to the left, all other terms to the right
-2s=-6
s=-6/-2
s=+3

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