3+20+s=18

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Solution for 3+20+s=18 equation: 


Simplifying
3 + 20 + s = 18

Combine like terms: 3 + 20 = 23
23 + s = 18

Solving
23 + s = 18

Solving for variable 's'.

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

Add '-23' to each side of the equation.
23 + -23 + s = 18 + -23

Combine like terms: 23 + -23 = 0
0 + s = 18 + -23
s = 18 + -23

Combine like terms: 18 + -23 = -5
s = -5

Simplifying
s = -5

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