During the Great patriotic War, he lost his parents and found his home in an orphanage not far from Minsk.
In 1955, he graduated from the Minsk Art School and became a student at the Byelorussian State Theatre-Artistic Institute. His professors were Shevchenko, Suchoverkhov and Malishevskiy. He studied art under V. K. Tsvirko and soon became a remarkably talented draftsman.
In his creative work, he was greatly influenced by landscape painters Bilalinitskiy-Burylja, Plastov, Ivanov, Mikhail Vrubel and Issac Levitan, the masters Rembrandt, Michelangelo Buonarroti, Van Gogh and the French Impressionists.
Kazakevich became a member of the USSR Union of Artists in 1963.
In his compositions, he used the human figure like a subject that is a part of a landscape. The colorist is sensitive to the nuances of tone in nature. At the same time, his vigorous brushwork gives the painting life and movement. He is concerned not only with the elements of visual experience, for him the poetry of Belorussian landscape is always at the heart of his work.
In his portraits, he brings himself to be a successful painter. He took part in a number of exhibitions, not only in the former USSR, but in Czechoslovakia, Hungary, Poland, France, Germany, Finland, Austria and Yugoslavia.
In 1986, he was awarded the Order of Friendship Among People and in 1987, he became the Merited Arts Worker of Byelorussia.