20r-19r=15

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Solution for 20r-19r=15 equation: 


Simplifying
20r + -19r = 15

Combine like terms: 20r + -19r = 1r
1r = 15

Solving
1r = 15

Solving for variable 'r'.

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

Divide each side by '1'.
r = 15

Simplifying
r = 15

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