Decide whether the equation is "conditional," an "identity," or a "contradiction." Give its solution set.
-$2 [ 3 - ( 9 - 5 r ) ] - r = - 18 + 3 ( 2 + 3 r )$
A) Conditional; $\{ 18 \}$
B) Conditional; $\{ - 9 \}$
C) Contradiction; $\varnothing$
D) Identity; {all real numbers $\}$

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The Answer of Decide whether the equation is "conditional," an "identity," or a "contradiction." Give its solution set.
-$2 [ 3 - ( 9 - 5 r ) ] - r = - 18 + 3 ( 2 + 3 r )$
A) Conditional; $\{ 18 \}$
B) Conditional; $\{ - 9 \}$
C) Contradiction; $\varnothing$
D) Identity; {all real numbers $\}$

Decide Whether the Equation Is "Conditional," an "Identity," or a "Contradiction