-s+-31=20

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Solution for -s+-31=20 equation: 


Simplifying
-1s + -31 = 20

Reorder the terms:
-31 + -1s = 20

Solving
-31 + -1s = 20

Solving for variable 's'.

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

Add '31' to each side of the equation.
-31 + 31 + -1s = 20 + 31

Combine like terms: -31 + 31 = 0
0 + -1s = 20 + 31
-1s = 20 + 31

Combine like terms: 20 + 31 = 51
-1s = 51

Divide each side by '-1'.
s = -51

Simplifying
s = -51

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