2s+s=12

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Solution for 2s+s=12 equation: 


Simplifying
2s + s = 12

Combine like terms: 2s + s = 3s
3s = 12

Solving
3s = 12

Solving for variable 's'.

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

Divide each side by '3'.
s = 4

Simplifying
s = 4

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