CPM Homework Help : A2C Problem 7-121

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7-121.

Which of the following statements are true? If true, explain how you know, and if not, show why not.

$\frac { x + 3 } { 5 } = \frac { x } { 5 } + \frac { 3 } { 5 }$
Hint (a):
Try multiplying both sides by $5$ .

$\frac { 5 } { x + 3 } = \frac { 5 } { x } + \frac { 5 } { 3 }$
Hint (b):
Is there something you can multiply both sides by to eliminate the fractions?
Answer (b):
The equation is only true when
$\textit{x}=\frac{-3\pm3\textit{i}\sqrt{3}}{2}$

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