Question

4/x-3 + 5/x-5 = 9/x-13​

Answer 1

4/(x-3) +5/(x-5)=9/(x-13)

(4x-20+5x-15)/(x²-8x+15)=9/(x-13)

(9x-35)(x-13)=9(x²-8x+15)

9x²-35x-117x+455=9x²-72x+135

152x-72x=455-135

82x=320

x=320/82=160/41