-4d+6=-21+5d

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Solution for -4d+6=-21+5d equation:


Simplifying
-4d + 6 = -21 + 5d

Reorder the terms:
6 + -4d = -21 + 5d

Solving
6 + -4d = -21 + 5d

Solving for variable 'd'.

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

Add '-5d' to each side of the equation.
6 + -4d + -5d = -21 + 5d + -5d

Combine like terms: -4d + -5d = -9d
6 + -9d = -21 + 5d + -5d

Combine like terms: 5d + -5d = 0
6 + -9d = -21 + 0
6 + -9d = -21

Add '-6' to each side of the equation.
6 + -6 + -9d = -21 + -6

Combine like terms: 6 + -6 = 0
0 + -9d = -21 + -6
-9d = -21 + -6

Combine like terms: -21 + -6 = -27
-9d = -27

Divide each side by '-9'.
d = 3

Simplifying
d = 3

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