3+r=9+r

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Solution for 3+r=9+r equation: 


Simplifying
3 + r = 9 + r

Add '-1r' to each side of the equation.
3 + r + -1r = 9 + r + -1r

Combine like terms: r + -1r = 0
3 + 0 = 9 + r + -1r
3 = 9 + r + -1r

Combine like terms: r + -1r = 0
3 = 9 + 0
3 = 9

Solving
3 = 9

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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