2r-11=9

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Solution for 2r-11=9 equation: 


Simplifying
2r + -11 = 9

Reorder the terms:
-11 + 2r = 9

Solving
-11 + 2r = 9

Solving for variable 'r'.

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

Add '11' to each side of the equation.
-11 + 11 + 2r = 9 + 11

Combine like terms: -11 + 11 = 0
0 + 2r = 9 + 11
2r = 9 + 11

Combine like terms: 9 + 11 = 20
2r = 20

Divide each side by '2'.
r = 10

Simplifying
r = 10

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