2r+9r+9+4=

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Solution for 2r+9r+9+4= equation:


Simplifying
2r + 9r + 9 + 4 = 0

Reorder the terms:
9 + 4 + 2r + 9r = 0

Combine like terms: 9 + 4 = 13
13 + 2r + 9r = 0

Combine like terms: 2r + 9r = 11r
13 + 11r = 0

Solving
13 + 11r = 0

Solving for variable 'r'.

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

Add '-13' to each side of the equation.
13 + -13 + 11r = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 11r = 0 + -13
11r = 0 + -13

Combine like terms: 0 + -13 = -13
11r = -13

Divide each side by '11'.
r = -1.181818182

Simplifying
r = -1.181818182

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