(-6d)-(-2d)=20

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Solution for (-6d)-(-2d)=20 equation: 


Simplifying
(-6d) + -1(-2d) = 20

Remove parenthesis around (-2d)
(-6d) + -1 * -2d = 20

Multiply -1 * -2
(-6d) + 2d = 20

Combine like terms: (-6d) + 2d = -4d
-4d = 20

Solving
-4d = 20

Solving for variable 'd'.

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

Divide each side by '-4'.
d = -5

Simplifying
d = -5

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