-3+2s=9

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Solution for -3+2s=9 equation: 


Simplifying
-3 + 2s = 9

Solving
-3 + 2s = 9

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 + 2s = 9 + 3

Combine like terms: -3 + 3 = 0
0 + 2s = 9 + 3
2s = 9 + 3

Combine like terms: 9 + 3 = 12
2s = 12

Divide each side by '2'.
s = 6

Simplifying
s = 6

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