7r-8r=

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Solution for 7r-8r= equation: 


Simplifying
7r + -8r = 0

Combine like terms: 7r + -8r = -1r
-1r = 0

Solving
-1r = 0

Solving for variable 'r'.

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

Divide each side by '-1'.
r = 0

Simplifying
r = 0

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