d-2(8-d)=-31

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Solution for d-2(8-d)=-31 equation:


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

Reorder the terms:
-16 + d + 2d = -31

Combine like terms: d + 2d = 3d
-16 + 3d = -31

Solving
-16 + 3d = -31

Solving for variable 'd'.

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

Add '16' to each side of the equation.
-16 + 16 + 3d = -31 + 16

Combine like terms: -16 + 16 = 0
0 + 3d = -31 + 16
3d = -31 + 16

Combine like terms: -31 + 16 = -15
3d = -15

Divide each side by '3'.
d = -5

Simplifying
d = -5

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