3-s=-15

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Solution for 3-s=-15 equation: 


Simplifying
3 + -1s = -15

Solving
3 + -1s = -15

Solving for variable 's'.

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

Add '-3' to each side of the equation.
3 + -3 + -1s = -15 + -3

Combine like terms: 3 + -3 = 0
0 + -1s = -15 + -3
-1s = -15 + -3

Combine like terms: -15 + -3 = -18
-1s = -18

Divide each side by '-1'.
s = 18

Simplifying
s = 18

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