-2+s=21

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Solution for -2+s=21 equation: 


Simplifying
-2 + s = 21

Solving
-2 + s = 21

Solving for variable 's'.

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

Add '2' to each side of the equation.
-2 + 2 + s = 21 + 2

Combine like terms: -2 + 2 = 0
0 + s = 21 + 2
s = 21 + 2

Combine like terms: 21 + 2 = 23
s = 23

Simplifying
s = 23

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