Question

Решить систему Срочно x-y=1 1/x + 1/y=6

Answer 1

X-y=1;
1/x+1/y=6 /*xy

x-y=1;
y+x=6xy;

x+y-y+x=6xy;

2x=6xy /:2x;

1=2y;

y=1/2.

x-1/2=1;

x=1,5.