63+3d-12=-21

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Solution for 63+3d-12=-21 equation:


Simplifying
63 + 3d + -12 = -21

Reorder the terms:
63 + -12 + 3d = -21

Combine like terms: 63 + -12 = 51
51 + 3d = -21

Solving
51 + 3d = -21

Solving for variable 'd'.

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

Add '-51' to each side of the equation.
51 + -51 + 3d = -21 + -51

Combine like terms: 51 + -51 = 0
0 + 3d = -21 + -51
3d = -21 + -51

Combine like terms: -21 + -51 = -72
3d = -72

Divide each side by '3'.
d = -24

Simplifying
d = -24

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