7d+d+d-4d-7=5d

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


Simplifying
7d + d + d + -4d + -7 = 5d

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

Combine like terms: 7d + d = 8d
-7 + 8d + d + -4d = 5d

Combine like terms: 8d + d = 9d
-7 + 9d + -4d = 5d

Combine like terms: 9d + -4d = 5d
-7 + 5d = 5d

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

Combine like terms: 5d + -5d = 0
-7 + 0 = 5d + -5d
-7 = 5d + -5d

Combine like terms: 5d + -5d = 0
-7 = 0

Solving
-7 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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