12d+9=6d+51

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Solution for 12d+9=6d+51 equation:


Simplifying
12d + 9 = 6d + 51

Reorder the terms:
9 + 12d = 6d + 51

Reorder the terms:
9 + 12d = 51 + 6d

Solving
9 + 12d = 51 + 6d

Solving for variable 'd'.

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

Add '-6d' to each side of the equation.
9 + 12d + -6d = 51 + 6d + -6d

Combine like terms: 12d + -6d = 6d
9 + 6d = 51 + 6d + -6d

Combine like terms: 6d + -6d = 0
9 + 6d = 51 + 0
9 + 6d = 51

Add '-9' to each side of the equation.
9 + -9 + 6d = 51 + -9

Combine like terms: 9 + -9 = 0
0 + 6d = 51 + -9
6d = 51 + -9

Combine like terms: 51 + -9 = 42
6d = 42

Divide each side by '6'.
d = 7

Simplifying
d = 7

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