Question

$solve \: \: \: \\ \frac{5}{x + y} - \frac{2}{x - y} = - 1 \: and \frac{15}{x + y} - \frac{7}{x - y}$
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Answer 1

Answer:

Step-by-step explanation:

(ax−ab)+(x−b)

ax2−abx

 

=

a(x−b)+(x−b)

ax(x−b)

 

Take out common factor (x−b) in the numerator

=

(x−b)(a+1)

ax(x−b)

 

Cancel the common factor in the numerator and the denominator to give the final answer

=

a+1

ax