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

question 246

Multiple Choice

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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