-5d-3d=21

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Solution for -5d-3d=21 equation: 


Simplifying
-5d + -3d = 21

Combine like terms: -5d + -3d = -8d
-8d = 21

Solving
-8d = 21

Solving for variable 'd'.

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

Divide each side by '-8'.
d = -2.625

Simplifying
d = -2.625

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