60=r(20)

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Solution for 60=r(20) equation:


Simplifying
60 = r(20)

Reorder the terms for easier multiplication:
60 = 20r

Solving
60 = 20r

Solving for variable 'r'.

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

Add '-20r' to each side of the equation.
60 + -20r = 20r + -20r

Combine like terms: 20r + -20r = 0
60 + -20r = 0

Add '-60' to each side of the equation.
60 + -60 + -20r = 0 + -60

Combine like terms: 60 + -60 = 0
0 + -20r = 0 + -60
-20r = 0 + -60

Combine like terms: 0 + -60 = -60
-20r = -60

Divide each side by '-20'.
r = 3

Simplifying
r = 3

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