Question

Как решить уравнениеx+5/x-5=-9

Answer 1

(x+5)/(x-5)=-9 |*(x-5)
x+5=-9*(x-5)
x+5=-9*x+45
x+9*x=45-5
10*x=40 |/10
x=4

Answer 2

x+5/x-5= -9/1
-9(x-5)=x+5
-9x+45=x+5
-9-x=5-45
-10x=-40
x=4