-2s=-s-9

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Solution for -2s=-s-9 equation: 


Simplifying
-2s = -1s + -9

Reorder the terms:
-2s = -9 + -1s

Solving
-2s = -9 + -1s

Solving for variable 's'.

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

Add 's' to each side of the equation.
-2s + s = -9 + -1s + s

Combine like terms: -2s + s = -1s
-1s = -9 + -1s + s

Combine like terms: -1s + s = 0
-1s = -9 + 0
-1s = -9

Divide each side by '-1'.
s = 9

Simplifying
s = 9

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