r*3r=

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Solution for r*3r= equation: 


Simplifying
r * 3r = 0

Reorder the terms for easier multiplication:
3r * r = 0

Multiply r * r
3r2 = 0

Solving
3r2 = 0

Solving for variable 'r'.

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

Divide each side by '3'.
r2 = 0

Simplifying
r2 = 0

Take the square root of each side:
r = {0}

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