15=3.5-2s

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Solution for 15=3.5-2s equation:


Simplifying
15 = 3.5 + -2s

Solving
15 = 3.5 + -2s

Solving for variable 's'.

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

Add '2s' to each side of the equation.
15 + 2s = 3.5 + -2s + 2s

Combine like terms: -2s + 2s = 0
15 + 2s = 3.5 + 0
15 + 2s = 3.5

Add '-15' to each side of the equation.
15 + -15 + 2s = 3.5 + -15

Combine like terms: 15 + -15 = 0
0 + 2s = 3.5 + -15
2s = 3.5 + -15

Combine like terms: 3.5 + -15 = -11.5
2s = -11.5

Divide each side by '2'.
s = -5.75

Simplifying
s = -5.75

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