11s-9s+21=

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Solution for 11s-9s+21= equation:


Simplifying
11s + -9s + 21 = 0

Reorder the terms:
21 + 11s + -9s = 0

Combine like terms: 11s + -9s = 2s
21 + 2s = 0

Solving
21 + 2s = 0

Solving for variable 's'.

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

Add '-21' to each side of the equation.
21 + -21 + 2s = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 2s = 0 + -21
2s = 0 + -21

Combine like terms: 0 + -21 = -21
2s = -21

Divide each side by '2'.
s = -10.5

Simplifying
s = -10.5

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