-7+12=-9s

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Solution for -7+12=-9s equation:


Simplifying
-7 + 12 = -9s

Combine like terms: -7 + 12 = 5
5 = -9s

Solving
5 = -9s

Solving for variable 's'.

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

Add '9s' to each side of the equation.
5 + 9s = -9s + 9s

Combine like terms: -9s + 9s = 0
5 + 9s = 0

Add '-5' to each side of the equation.
5 + -5 + 9s = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 9s = 0 + -5
9s = 0 + -5

Combine like terms: 0 + -5 = -5
9s = -5

Divide each side by '9'.
s = -0.5555555556

Simplifying
s = -0.5555555556

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