7s-14=21

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Solution for 7s-14=21 equation: 



7s-14=21

We move all terms to the left:

7s-14-(21)=0

We add all the numbers together, and all the variables

7s-35=0

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

7s=35

s=35/7

s=5

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