2s+3=21-1

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Solution for 2s+3=21-1 equation: 



2s+3=21-1

We move all terms to the left:

2s+3-(21-1)=0

We add all the numbers together, and all the variables

2s+3-20=0

We add all the numbers together, and all the variables

2s-17=0

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

2s=17

s=17/2

s=8+1/2

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