18.5=-9(2.5s-9.5)

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Solution for 18.5=-9(2.5s-9.5) equation: 


Simplifying
18.5 = -9(2.5s + -9.5)

Reorder the terms:
18.5 = -9(-9.5 + 2.5s)
18.5 = (-9.5 * -9 + 2.5s * -9)
18.5 = (85.5 + -22.5s)

Solving
18.5 = 85.5 + -22.5s

Solving for variable 's'.

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

Add '22.5s' to each side of the equation.
18.5 + 22.5s = 85.5 + -22.5s + 22.5s

Combine like terms: -22.5s + 22.5s = 0.0
18.5 + 22.5s = 85.5 + 0.0
18.5 + 22.5s = 85.5

Add '-18.5' to each side of the equation.
18.5 + -18.5 + 22.5s = 85.5 + -18.5

Combine like terms: 18.5 + -18.5 = 0.0
0.0 + 22.5s = 85.5 + -18.5
22.5s = 85.5 + -18.5

Combine like terms: 85.5 + -18.5 = 67
22.5s = 67

Divide each side by '22.5'.
s = 2.977777778

Simplifying
s = 2.977777778

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