7s-42=4s

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Solution for 7s-42=4s equation: 



7s-42=4s

We move all terms to the left:

7s-42-(4s)=0

We add all the numbers together, and all the variables

3s-42=0

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

3s=42

s=42/3

s=14

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