90=9s+-9

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Solution for 90=9s+-9 equation:


Simplifying
90 = 9s + -9

Reorder the terms:
90 = -9 + 9s

Solving
90 = -9 + 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.
90 + -9s = -9 + 9s + -9s

Combine like terms: 9s + -9s = 0
90 + -9s = -9 + 0
90 + -9s = -9

Add '-90' to each side of the equation.
90 + -90 + -9s = -9 + -90

Combine like terms: 90 + -90 = 0
0 + -9s = -9 + -90
-9s = -9 + -90

Combine like terms: -9 + -90 = -99
-9s = -99

Divide each side by '-9'.
s = 11

Simplifying
s = 11

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