s-2(8-w)=-31

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Solution for s-2(8-w)=-31 equation:


Simplifying
s + -2(8 + -1w) = -31
s + (8 * -2 + -1w * -2) = -31
s + (-16 + 2w) = -31

Reorder the terms:
-16 + s + 2w = -31

Solving
-16 + s + 2w = -31

Solving for variable 's'.

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

Add '16' to each side of the equation.
-16 + s + 16 + 2w = -31 + 16

Reorder the terms:
-16 + 16 + s + 2w = -31 + 16

Combine like terms: -16 + 16 = 0
0 + s + 2w = -31 + 16
s + 2w = -31 + 16

Combine like terms: -31 + 16 = -15
s + 2w = -15

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

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

Simplifying
s = -15 + -2w

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