-6r-4r=-20

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Solution for -6r-4r=-20 equation: 


Simplifying
-6r + -4r = -20

Combine like terms: -6r + -4r = -10r
-10r = -20

Solving
-10r = -20

Solving for variable 'r'.

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

Divide each side by '-10'.
r = 2

Simplifying
r = 2

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