3(m+1.4)-6.4=8m-15*(m-11)
3m+4,2-6,4=8m-15m+165
3m-2,2=-7m+165
3m+7m=2,2+165
10m=167,2
m=167,2:10
m=16,72
3(m+1.4)-6.4=8m-15*(m-11)
3m+4.2-6.4=8m-15m+165
3m-8m+15m=165-4.2+6.4
10m=167.2
m=167.2:10
m=16.72
проверка:
3*(16.72+1.4)-6.4=8*16.72-15*16.72-15*11
47.96=47.96
