5х-0,4+0.4+1.4у=32+1
5х+1.4у=33
5х=33-1.4у
х=33-1.4у/5
х=6.6-0.28у
5(6.6-0.28у)+1.4у=33
5×6.6-5×(-0.28)+1.4у=33
33-(-1.4)+1.4у=33
33+1.4+1.4у=33
1.4у=33-33-1.4
1.4у=-1.4
у=-1
х=6.6-0.28×(-1)
х=6.6+0.28
х=6.88
5х-0,4+0.4+1.4у=32+1
5х+1.4у=33
5х=33-1.4у
х=33-1.4у/5
х=6.6-0.28у
5(6.6-0.28у)+1.4у=33
5×6.6-5×(-0.28)+1.4у=33
33-(-1.4)+1.4у=33
33+1.4+1.4у=33
1.4у=33-33-1.4
1.4у=-1.4
у=-1
х=6.6-0.28×(-1)
х=6.6+0.28
х=6.88