u-16=u-21

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Solution for u-16=u-21 equation: 


Simplifying
u + -16 = u + -21

Reorder the terms:
-16 + u = u + -21

Reorder the terms:
-16 + u = -21 + u

Add '-1u' to each side of the equation.
-16 + u + -1u = -21 + u + -1u

Combine like terms: u + -1u = 0
-16 + 0 = -21 + u + -1u
-16 = -21 + u + -1u

Combine like terms: u + -1u = 0
-16 = -21 + 0
-16 = -21

Solving
-16 = -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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