s+s-6+2s-6=54

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Solution for s+s-6+2s-6=54 equation: 


Simplifying
s + s + -6 + 2s + -6 = 54

Reorder the terms:
-6 + -6 + s + s + 2s = 54

Combine like terms: -6 + -6 = -12
-12 + s + s + 2s = 54

Combine like terms: s + s = 2s
-12 + 2s + 2s = 54

Combine like terms: 2s + 2s = 4s
-12 + 4s = 54

Solving
-12 + 4s = 54

Solving for variable 's'.

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

Add '12' to each side of the equation.
-12 + 12 + 4s = 54 + 12

Combine like terms: -12 + 12 = 0
0 + 4s = 54 + 12
4s = 54 + 12

Combine like terms: 54 + 12 = 66
4s = 66

Divide each side by '4'.
s = 16.5

Simplifying
s = 16.5

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