-7(8.5-9.5s)=18.5

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Solution for -7(8.5-9.5s)=18.5 equation: 


Simplifying
-7(8.5 + -9.5s) = 18.5
(8.5 * -7 + -9.5s * -7) = 18.5
(-59.5 + 66.5s) = 18.5

Solving
-59.5 + 66.5s = 18.5

Solving for variable 's'.

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

Add '59.5' to each side of the equation.
-59.5 + 59.5 + 66.5s = 18.5 + 59.5

Combine like terms: -59.5 + 59.5 = 0.0
0.0 + 66.5s = 18.5 + 59.5
66.5s = 18.5 + 59.5

Combine like terms: 18.5 + 59.5 = 78
66.5s = 78

Divide each side by '66.5'.
s = 1.172932331

Simplifying
s = 1.172932331

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