r-3=r

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Solution for r-3=r equation: 


Simplifying
r + -3 = r

Reorder the terms:
-3 + r = r

Add '-1r' to each side of the equation.
-3 + r + -1r = r + -1r

Combine like terms: r + -1r = 0
-3 + 0 = r + -1r
-3 = r + -1r

Combine like terms: r + -1r = 0
-3 = 0

Solving
-3 = 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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