-1-2d=7-2d

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Solution for -1-2d=7-2d equation: 


Simplifying
-1 + -2d = 7 + -2d

Add '2d' to each side of the equation.
-1 + -2d + 2d = 7 + -2d + 2d

Combine like terms: -2d + 2d = 0
-1 + 0 = 7 + -2d + 2d
-1 = 7 + -2d + 2d

Combine like terms: -2d + 2d = 0
-1 = 7 + 0
-1 = 7

Solving
-1 = 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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