7s-9s=4

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Solution for 7s-9s=4 equation: 


Simplifying
7s + -9s = 4

Combine like terms: 7s + -9s = -2s
-2s = 4

Solving
-2s = 4

Solving for variable 's'.

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

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

Simplifying
s = -2

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