13d+8=7d+20

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Solution for 13d+8=7d+20 equation:


Simplifying
13d + 8 = 7d + 20

Reorder the terms:
8 + 13d = 7d + 20

Reorder the terms:
8 + 13d = 20 + 7d

Solving
8 + 13d = 20 + 7d

Solving for variable 'd'.

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

Add '-7d' to each side of the equation.
8 + 13d + -7d = 20 + 7d + -7d

Combine like terms: 13d + -7d = 6d
8 + 6d = 20 + 7d + -7d

Combine like terms: 7d + -7d = 0
8 + 6d = 20 + 0
8 + 6d = 20

Add '-8' to each side of the equation.
8 + -8 + 6d = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 6d = 20 + -8
6d = 20 + -8

Combine like terms: 20 + -8 = 12
6d = 12

Divide each side by '6'.
d = 2

Simplifying
d = 2

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