-s+20=-18+s

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Solution for -s+20=-18+s equation:


Simplifying
-1s + 20 = -18 + s

Reorder the terms:
20 + -1s = -18 + s

Solving
20 + -1s = -18 + s

Solving for variable 's'.

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

Add '-1s' to each side of the equation.
20 + -1s + -1s = -18 + s + -1s

Combine like terms: -1s + -1s = -2s
20 + -2s = -18 + s + -1s

Combine like terms: s + -1s = 0
20 + -2s = -18 + 0
20 + -2s = -18

Add '-20' to each side of the equation.
20 + -20 + -2s = -18 + -20

Combine like terms: 20 + -20 = 0
0 + -2s = -18 + -20
-2s = -18 + -20

Combine like terms: -18 + -20 = -38
-2s = -38

Divide each side by '-2'.
s = 19

Simplifying
s = 19

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