Born in 1909 in Nizhny Novgorod. After the seven-year self-study mathematics and physics. At age 17 completed his postgraduate studies at the Academy of Sciences of Ukraine. In 1934-1958 gg. Worked at the University of Kiev (from 1936 - professor). Since 1950 - at the Mathematical Institute of the USSR and the Moscow University, in 1958 - also at the Joint Institute for Nuclear Research (since 1965 - Director). In 1963 - Academician-secretary of Department of Mathematics of the USSR, while in the 1965-1973 biennium. - Director of the Institute of Theoretical Physics of Ukrayiny.Mykola Bogolyubov - one of the classics of modern science. His works are in numerous branches of mathematics, mechanics, physics. In each of the results obtained by the scientists is fundamental.
Пошаговое объяснение:
1) 15,62 + x = 20;
x = 20 - 15,62;
х = 4,38;
2) 9.54 - х = 7.268;
х = 9,54 до 7.268;
х = 2,272;
3) х - 36,76 = 19,24;
х = 19,24 + 36,76;
x = 56;
4) x + 0,24 = 8,1;
x = 8,1 - 0,24;
x = 7,86.