11d+6=8d+21

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Solution for 11d+6=8d+21 equation:


Simplifying
11d + 6 = 8d + 21

Reorder the terms:
6 + 11d = 8d + 21

Reorder the terms:
6 + 11d = 21 + 8d

Solving
6 + 11d = 21 + 8d

Solving for variable 'd'.

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

Add '-8d' to each side of the equation.
6 + 11d + -8d = 21 + 8d + -8d

Combine like terms: 11d + -8d = 3d
6 + 3d = 21 + 8d + -8d

Combine like terms: 8d + -8d = 0
6 + 3d = 21 + 0
6 + 3d = 21

Add '-6' to each side of the equation.
6 + -6 + 3d = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 3d = 21 + -6
3d = 21 + -6

Combine like terms: 21 + -6 = 15
3d = 15

Divide each side by '3'.
d = 5

Simplifying
d = 5

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