\"\"

\

The expression is \"\".

\

\"\"           (Apply formula: \"\")

\

\"\"

\

Exclude the values for which x + 7 = 0, and the denominator cannot equal 0.

\

Apply subtraction property of equality: If a = b then \"\".

\

\"\"

\

\"\"                            (Apply additive inverse property: \"\")

\

\"\"                              (Apply additive identity property: \"\")

\

Then the value of x not equal \"\".\"\"

\

The value of x not equal \"\".