3s+2s=12

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Solution for 3s+2s=12 equation:



3s+2s=12
We move all terms to the left:
3s+2s-(12)=0
We add all the numbers together, and all the variables
5s-12=0
We move all terms containing s to the left, all other terms to the right
5s=12
s=12/5
s=2+2/5

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