7d-13=-13+7d

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Solution for 7d-13=-13+7d equation: 


Simplifying
7d + -13 = -13 + 7d

Reorder the terms:
-13 + 7d = -13 + 7d

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

Combine like terms: -13 + 13 = 0
0 + 7d = -13 + 13 + 7d
7d = -13 + 13 + 7d

Combine like terms: -13 + 13 = 0
7d = 0 + 7d
7d = 7d

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

Combine like terms: 7d + -7d = 0
0 = 7d + -7d

Combine like terms: 7d + -7d = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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