Срочно решите уравнение прошу! 200:(15+х)+200:(15-х)=30

[latex] \frac{200}{15+x}+ \frac{200}{15-x}=30 \\ razdelim .na .200 \\ \frac{1}{15+x}+ \frac{1}{15-x}=0.15 \\ \frac{15-x}{(15+x)(15-x)}+ \frac{15+x}{(15-x)(15+x)}=0.15 \\ \frac{15-x+15+x}{(15-x)(15+x)}=0.15 \\ \frac{30}{(15-x)(15+x)}=0.15 \\ (15-x)(15+x)=30/0.15 \\ 15^2-x^2=200 \\ -x^2=200-225 \\ x^2=25 \\x= \sqrt{25} \\ x_{1} =5 \\ x_{2} =-5 \\ [/latex]