-8r-9=-8r

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Solution for -8r-9=-8r equation: 


Simplifying
-8r + -9 = -8r

Reorder the terms:
-9 + -8r = -8r

Add '8r' to each side of the equation.
-9 + -8r + 8r = -8r + 8r

Combine like terms: -8r + 8r = 0
-9 + 0 = -8r + 8r
-9 = -8r + 8r

Combine like terms: -8r + 8r = 0
-9 = 0

Solving
-9 = 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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