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Decide What Values of the Variable Cannot Possibly Be Solutions $\sqrt { x + 7 } + 5 = x$

Question 210

Multiple Choice

Decide what values of the variable cannot possibly be solutions for the equation.
- $\sqrt { x + 7 } + 5 = x$

A) $\{ 2 \}$
B) $\{ 9,18 \}$
C) $\{ 9 \}$
D) $\{ 2,9 \}$

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