4s-9=s

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Solution for 4s-9=s equation:


Simplifying
4s + -9 = s

Reorder the terms:
-9 + 4s = s

Solving
-9 + 4s = s

Solving for variable 's'.

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

Add '-1s' to each side of the equation.
-9 + 4s + -1s = s + -1s

Combine like terms: 4s + -1s = 3s
-9 + 3s = s + -1s

Combine like terms: s + -1s = 0
-9 + 3s = 0

Add '9' to each side of the equation.
-9 + 9 + 3s = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 3s = 0 + 9
3s = 0 + 9

Combine like terms: 0 + 9 = 9
3s = 9

Divide each side by '3'.
s = 3

Simplifying
s = 3

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