7r+13r=140

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Solution for 7r+13r=140 equation: 


Simplifying
7r + 13r = 140

Combine like terms: 7r + 13r = 20r
20r = 140

Solving
20r = 140

Solving for variable 'r'.

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

Divide each side by '20'.
r = 7

Simplifying
r = 7

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