$\"\"$

Discuss why $\"\"$ and $\"\"$ have the same solution.

Consider $\"\"$ .

$\"\"$ (Original equation)

$\"\"$ (Multiply on each side by $\"\"$ )

$\"\"$ .

Multipliying the first equation by $\"\"$ will the result is the second equation.

Hence they have the same solution.

$\"\"$

$\"\"$ and $\"\"$ have the same solution.