-7(2.5s-9.5)=20.5

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Solution for -7(2.5s-9.5)=20.5 equation: 


Simplifying
-7(2.5s + -9.5) = 20.5

Reorder the terms:
-7(-9.5 + 2.5s) = 20.5
(-9.5 * -7 + 2.5s * -7) = 20.5
(66.5 + -17.5s) = 20.5

Solving
66.5 + -17.5s = 20.5

Solving for variable 's'.

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

Add '-66.5' to each side of the equation.
66.5 + -66.5 + -17.5s = 20.5 + -66.5

Combine like terms: 66.5 + -66.5 = 0.0
0.0 + -17.5s = 20.5 + -66.5
-17.5s = 20.5 + -66.5

Combine like terms: 20.5 + -66.5 = -46
-17.5s = -46

Divide each side by '-17.5'.
s = 2.628571429

Simplifying
s = 2.628571429

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