-18-11r=-21

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Solution for -18-11r=-21 equation: 


Simplifying
-18 + -11r = -21

Solving
-18 + -11r = -21

Solving for variable 'r'.

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

Add '18' to each side of the equation.
-18 + 18 + -11r = -21 + 18

Combine like terms: -18 + 18 = 0
0 + -11r = -21 + 18
-11r = -21 + 18

Combine like terms: -21 + 18 = -3
-11r = -3

Divide each side by '-11'.
r = 0.2727272727

Simplifying
r = 0.2727272727

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