9s-12+25=21

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Solution for 9s-12+25=21 equation:


Simplifying
9s + -12 + 25 = 21

Reorder the terms:
-12 + 25 + 9s = 21

Combine like terms: -12 + 25 = 13
13 + 9s = 21

Solving
13 + 9s = 21

Solving for variable 's'.

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

Add '-13' to each side of the equation.
13 + -13 + 9s = 21 + -13

Combine like terms: 13 + -13 = 0
0 + 9s = 21 + -13
9s = 21 + -13

Combine like terms: 21 + -13 = 8
9s = 8

Divide each side by '9'.
s = 0.8888888889

Simplifying
s = 0.8888888889

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