7d+13=8d

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Solution for 7d+13=8d equation:


Simplifying
7d + 13 = 8d

Reorder the terms:
13 + 7d = 8d

Solving
13 + 7d = 8d

Solving for variable 'd'.

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

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

Combine like terms: 7d + -8d = -1d
13 + -1d = 8d + -8d

Combine like terms: 8d + -8d = 0
13 + -1d = 0

Add '-13' to each side of the equation.
13 + -13 + -1d = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -1d = 0 + -13
-1d = 0 + -13

Combine like terms: 0 + -13 = -13
-1d = -13

Divide each side by '-1'.
d = 13

Simplifying
d = 13

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