21d-5=16d+5

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Solution for 21d-5=16d+5 equation:


Simplifying
21d + -5 = 16d + 5

Reorder the terms:
-5 + 21d = 16d + 5

Reorder the terms:
-5 + 21d = 5 + 16d

Solving
-5 + 21d = 5 + 16d

Solving for variable 'd'.

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

Add '-16d' to each side of the equation.
-5 + 21d + -16d = 5 + 16d + -16d

Combine like terms: 21d + -16d = 5d
-5 + 5d = 5 + 16d + -16d

Combine like terms: 16d + -16d = 0
-5 + 5d = 5 + 0
-5 + 5d = 5

Add '5' to each side of the equation.
-5 + 5 + 5d = 5 + 5

Combine like terms: -5 + 5 = 0
0 + 5d = 5 + 5
5d = 5 + 5

Combine like terms: 5 + 5 = 10
5d = 10

Divide each side by '5'.
d = 2

Simplifying
d = 2

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