Решитe:5,2-(6-y)=3,258
5.2-(6-y)=3.258 5.2-6+y=3.258 y-0.8=3.258 y=3.258+0.8 y=4.058
-(6-у)=3,258-5,2 -(6-у)=-1,942 -(6-у)=-1,942 6-у=1,942 -у=1,942-6 -у=-4,058 у=4,058