r+11+8r=11

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Solution for r+11+8r=11 equation: 


Simplifying
r + 11 + 8r = 11

Reorder the terms:
11 + r + 8r = 11

Combine like terms: r + 8r = 9r
11 + 9r = 11

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

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

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

Solving
9r = 0

Solving for variable 'r'.

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

Divide each side by '9'.
r = 0

Simplifying
r = 0

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