5s-9+4s=28.5

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Solution for 5s-9+4s=28.5 equation:


Simplifying
5s + -9 + 4s = 28.5

Reorder the terms:
-9 + 5s + 4s = 28.5

Combine like terms: 5s + 4s = 9s
-9 + 9s = 28.5

Solving
-9 + 9s = 28.5

Solving for variable 's'.

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

Add '9' to each side of the equation.
-9 + 9 + 9s = 28.5 + 9

Combine like terms: -9 + 9 = 0
0 + 9s = 28.5 + 9
9s = 28.5 + 9

Combine like terms: 28.5 + 9 = 37.5
9s = 37.5

Divide each side by '9'.
s = 4.166666667

Simplifying
s = 4.166666667

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