Solve for s
s=2
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18=9s
Variable s cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by s.
9s=18
Swap sides so that all variable terms are on the left hand side.
s=\frac{18}{9}
Divide both sides by 9.
s=2
Divide 18 by 9 to get 2.
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