15r-8r+-20r-8r=20

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Solution for 15r-8r+-20r-8r=20 equation: 


Simplifying
15r + -8r + -20r + -8r = 20

Combine like terms: 15r + -8r = 7r
7r + -20r + -8r = 20

Combine like terms: 7r + -20r = -13r
-13r + -8r = 20

Combine like terms: -13r + -8r = -21r
-21r = 20

Solving
-21r = 20

Solving for variable 'r'.

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

Divide each side by '-21'.
r = -0.9523809524

Simplifying
r = -0.9523809524

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