-8r-r=0

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Solution for -8r-r=0 equation: 


Simplifying
-8r + -1r = 0

Combine like terms: -8r + -1r = -9r
-9r = 0

Solving
-9r = 0

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by '-9'.
r = 0

Simplifying
r = 0

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