3*2d-1=21

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Solution for 3*2d-1=21 equation: 


Simplifying
3 * 2d + -1 = 21

Multiply 3 * 2
6d + -1 = 21

Reorder the terms:
-1 + 6d = 21

Solving
-1 + 6d = 21

Solving for variable 'd'.

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

Add '1' to each side of the equation.
-1 + 1 + 6d = 21 + 1

Combine like terms: -1 + 1 = 0
0 + 6d = 21 + 1
6d = 21 + 1

Combine like terms: 21 + 1 = 22
6d = 22

Divide each side by '6'.
d = 3.666666667

Simplifying
d = 3.666666667

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