s*7-24=81

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Solution for s*7-24=81 equation: 



s*7-24=81

We move all terms to the left:

s*7-24-(81)=0

We add all the numbers together, and all the variables

s*7-105=0

Wy multiply elements

7s-105=0

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

7s=105

s=105/7

s=15

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