3s-9s-s=15

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Solution for 3s-9s-s=15 equation: 


Simplifying
3s + -9s + -1s = 15

Combine like terms: 3s + -9s = -6s
-6s + -1s = 15

Combine like terms: -6s + -1s = -7s
-7s = 15

Solving
-7s = 15

Solving for variable 's'.

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

Divide each side by '-7'.
s = -2.142857143

Simplifying
s = -2.142857143

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