-9s+-12=78

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Solution for -9s+-12=78 equation: 


Simplifying
-9s + -12 = 78

Reorder the terms:
-12 + -9s = 78

Solving
-12 + -9s = 78

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 + -9s = 78 + 12

Combine like terms: -12 + 12 = 0
0 + -9s = 78 + 12
-9s = 78 + 12

Combine like terms: 78 + 12 = 90
-9s = 90

Divide each side by '-9'.
s = -10

Simplifying
s = -10

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