$\"\"$

The equation is $\"\"$

$\"\"$ (Divide each side by b + c)

$\"\"$ (Cancel common terms) $\"\"$

Verify:

To check the solution, substitute $\"\"$ in original equation.

$\"\"$

$\"\"$ (Cancel common terms)

Compare the values, the equation is true.

$\"\"$

The value of $\"\"$ .