18=s-3

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Solution for 18=s-3 equation:


Simplifying
18 = s + -3

Reorder the terms:
18 = -3 + s

Solving
18 = -3 + 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.
18 + -1s = -3 + s + -1s

Combine like terms: s + -1s = 0
18 + -1s = -3 + 0
18 + -1s = -3

Add '-18' to each side of the equation.
18 + -18 + -1s = -3 + -18

Combine like terms: 18 + -18 = 0
0 + -1s = -3 + -18
-1s = -3 + -18

Combine like terms: -3 + -18 = -21
-1s = -21

Divide each side by '-1'.
s = 21

Simplifying
s = 21

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