4d-7d=-3d-7

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Solution for 4d-7d=-3d-7 equation: 


Simplifying
4d + -7d = -3d + -7

Combine like terms: 4d + -7d = -3d
-3d = -3d + -7

Reorder the terms:
-3d = -7 + -3d

Add '3d' to each side of the equation.
-3d + 3d = -7 + -3d + 3d

Combine like terms: -3d + 3d = 0
0 = -7 + -3d + 3d

Combine like terms: -3d + 3d = 0
0 = -7 + 0
0 = -7

Solving
0 = -7

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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