7d+8=5d+20

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Solution for 7d+8=5d+20 equation:


Simplifying
7d + 8 = 5d + 20

Reorder the terms:
8 + 7d = 5d + 20

Reorder the terms:
8 + 7d = 20 + 5d

Solving
8 + 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.
8 + 7d + -5d = 20 + 5d + -5d

Combine like terms: 7d + -5d = 2d
8 + 2d = 20 + 5d + -5d

Combine like terms: 5d + -5d = 0
8 + 2d = 20 + 0
8 + 2d = 20

Add '-8' to each side of the equation.
8 + -8 + 2d = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 2d = 20 + -8
2d = 20 + -8

Combine like terms: 20 + -8 = 12
2d = 12

Divide each side by '2'.
d = 6

Simplifying
d = 6

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