4+2d=20

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Solution for 4+2d=20 equation: 


Simplifying
4 + 2d = 20

Solving
4 + 2d = 20

Solving for variable 'd'.

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

Add '-4' to each side of the equation.
4 + -4 + 2d = 20 + -4

Combine like terms: 4 + -4 = 0
0 + 2d = 20 + -4
2d = 20 + -4

Combine like terms: 20 + -4 = 16
2d = 16

Divide each side by '2'.
d = 8

Simplifying
d = 8

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