9-s=2+1

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Solution for 9-s=2+1 equation: 


Simplifying
9 + -1s = 2 + 1

Combine like terms: 2 + 1 = 3
9 + -1s = 3

Solving
9 + -1s = 3

Solving for variable 's'.

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

Add '-9' to each side of the equation.
9 + -9 + -1s = 3 + -9

Combine like terms: 9 + -9 = 0
0 + -1s = 3 + -9
-1s = 3 + -9

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

Divide each side by '-1'.
s = 6

Simplifying
s = 6

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