r+4r=25

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Solution for r+4r=25 equation: 


Simplifying
r + 4r = 25

Combine like terms: r + 4r = 5r
5r = 25

Solving
5r = 25

Solving for variable 'r'.

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

Divide each side by '5'.
r = 5

Simplifying
r = 5

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