Decide Whether the Equation Is an Identity, a Conditional Equation $- 0.2 ( x + 9 ) + 0.4 ( x + 9 ) = 0.2 x + 1.8$

question 49

Multiple Choice

Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.
- $- 0.2 ( x + 9 ) + 0.4 ( x + 9 ) = 0.2 x + 1.8$

• A) Contradiction; \(\varnothing\)
• B) Conditional; \(\{ 0.2 \}\)
• C) Conditional; \(\{ - 9 \}\)
• D) Identity; {all real numbers }

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