s-21=-31

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Solution for s-21=-31 equation: 


Simplifying
s + -21 = -31

Reorder the terms:
-21 + s = -31

Solving
-21 + s = -31

Solving for variable 's'.

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

Add '21' to each side of the equation.
-21 + 21 + s = -31 + 21

Combine like terms: -21 + 21 = 0
0 + s = -31 + 21
s = -31 + 21

Combine like terms: -31 + 21 = -10
s = -10

Simplifying
s = -10

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