6-(7-х)=-5;
7-х=6-(-5);
7-х=6+5;
7-х=11;
х=7-11;
х=–4.
ответ:6-(7-х)=-5;
6-7+х=-5;
-1+х=-5;
х=-5+1;
х=-4.
6-(7-х)=-5;
7-х=6-(-5);
7-х=6+5;
7-х=11;
х=7-11;
х=–4.
ответ:6-(7-х)=-5;
6-7+х=-5;
-1+х=-5;
х=-5+1;
х=-4.