7d+4=5d+20

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Solution for 7d+4=5d+20 equation:


Simplifying
7d + 4 = 5d + 20

Reorder the terms:
4 + 7d = 5d + 20

Reorder the terms:
4 + 7d = 20 + 5d

Solving
4 + 7d = 20 + 5d

Solving for variable 'd'.

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

Add '-5d' to each side of the equation.
4 + 7d + -5d = 20 + 5d + -5d

Combine like terms: 7d + -5d = 2d
4 + 2d = 20 + 5d + -5d

Combine like terms: 5d + -5d = 0
4 + 2d = 20 + 0
4 + 2d = 20

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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