8х-341=1-х
8х+х=1+341
9х=342
х=342/9
х=38
1.78z-1.2=2.48z+2.44
1.78z-2.48z=1.2+2.44
-0.7z=3.64
z=-5.2
8х-341=1-х
8х+х=1+341
9х=342
х=342/9
х=38
1.78z-1.2=2.48z+2.44
1.78z-2.48z=1.2+2.44
-0.7z=3.64
z=-5.2