7s-3=81

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Solution for 7s-3=81 equation: 


Simplifying
7s + -3 = 81

Reorder the terms:
-3 + 7s = 81

Solving
-3 + 7s = 81

Solving for variable 's'.

Move all terms containing s to the left, all other terms to the right.

Add '3' to each side of the equation.
-3 + 3 + 7s = 81 + 3

Combine like terms: -3 + 3 = 0
0 + 7s = 81 + 3
7s = 81 + 3

Combine like terms: 81 + 3 = 84
7s = 84

Divide each side by '7'.
s = 12

Simplifying
s = 12

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