12d+4=9d+19

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Solution for 12d+4=9d+19 equation:


Simplifying
12d + 4 = 9d + 19

Reorder the terms:
4 + 12d = 9d + 19

Reorder the terms:
4 + 12d = 19 + 9d

Solving
4 + 12d = 19 + 9d

Solving for variable 'd'.

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

Add '-9d' to each side of the equation.
4 + 12d + -9d = 19 + 9d + -9d

Combine like terms: 12d + -9d = 3d
4 + 3d = 19 + 9d + -9d

Combine like terms: 9d + -9d = 0
4 + 3d = 19 + 0
4 + 3d = 19

Add '-4' to each side of the equation.
4 + -4 + 3d = 19 + -4

Combine like terms: 4 + -4 = 0
0 + 3d = 19 + -4
3d = 19 + -4

Combine like terms: 19 + -4 = 15
3d = 15

Divide each side by '3'.
d = 5

Simplifying
d = 5

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