Question

решите уранения-
17х-х+5х-19=170
73у-у-22у+40=190

Answer 1

17х-х-5х-19=170
21х-19=170
21х=189
х=9


73у-у-22у+40=190
50у+40=190
50у=150
у=5

Answer 2

17x-x+5x-19=170 17x-x+5x=170+19 21x=189 x=189:21 x=9 73y-y-22y+140=190 73y-y-22y=190-140 50y=50 y=50:50 y=1