2d+4=25

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Solution for 2d+4=25 equation: 


Simplifying
2d + 4 = 25

Reorder the terms:
4 + 2d = 25

Solving
4 + 2d = 25

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 = 25 + -4

Combine like terms: 4 + -4 = 0
0 + 2d = 25 + -4
2d = 25 + -4

Combine like terms: 25 + -4 = 21
2d = 21

Divide each side by '2'.
d = 10.5

Simplifying
d = 10.5

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