7d+19=7d-21

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Solution for 7d+19=7d-21 equation:


Simplifying
7d + 19 = 7d + -21

Reorder the terms:
19 + 7d = 7d + -21

Reorder the terms:
19 + 7d = -21 + 7d

Add '-7d' to each side of the equation.
19 + 7d + -7d = -21 + 7d + -7d

Combine like terms: 7d + -7d = 0
19 + 0 = -21 + 7d + -7d
19 = -21 + 7d + -7d

Combine like terms: 7d + -7d = 0
19 = -21 + 0
19 = -21

Solving
19 = -21

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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