2s+s-2s-s+s=18

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Solution for 2s+s-2s-s+s=18 equation: 


Simplifying
2s + s + -2s + -1s + s = 18

Combine like terms: 2s + s = 3s
3s + -2s + -1s + s = 18

Combine like terms: 3s + -2s = 1s
1s + -1s + s = 18

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

Solving
s = 18

Solving for variable 's'.

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

Simplifying
s = 18

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