r*5=20

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Solution for r*5=20 equation: 


Simplifying
r * 5 = 20

Reorder the terms for easier multiplication:
5r = 20

Solving
5r = 20

Solving for variable 'r'.

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

Divide each side by '5'.
r = 4

Simplifying
r = 4

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