80-5s=15

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Solution for 80-5s=15 equation: 


Simplifying
80 + -5s = 15

Solving
80 + -5s = 15

Solving for variable 's'.

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

Add '-80' to each side of the equation.
80 + -80 + -5s = 15 + -80

Combine like terms: 80 + -80 = 0
0 + -5s = 15 + -80
-5s = 15 + -80

Combine like terms: 15 + -80 = -65
-5s = -65

Divide each side by '-5'.
s = 13

Simplifying
s = 13

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