-9r+16r+9r+-18r=-16

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Solution for -9r+16r+9r+-18r=-16 equation: 


Simplifying
-9r + 16r + 9r + -18r = -16

Combine like terms: -9r + 16r = 7r
7r + 9r + -18r = -16

Combine like terms: 7r + 9r = 16r
16r + -18r = -16

Combine like terms: 16r + -18r = -2r
-2r = -16

Solving
-2r = -16

Solving for variable 'r'.

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

Divide each side by '-2'.
r = 8

Simplifying
r = 8

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