21d-63=

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Solution for 21d-63= equation:


Simplifying
21d + -63 = 0

Reorder the terms:
-63 + 21d = 0

Solving
-63 + 21d = 0

Solving for variable 'd'.

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

Add '63' to each side of the equation.
-63 + 63 + 21d = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 21d = 0 + 63
21d = 0 + 63

Combine like terms: 0 + 63 = 63
21d = 63

Divide each side by '21'.
d = 3

Simplifying
d = 3

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