Ответ:
44.2b-(15.8b+23.45)=44.2*2.7-(15.8*2.7+23.45)=53.23
2 = 3х - 5 - 7 + 4
- 3х = 4 - 5 - 7 - 2
- 3х = -10
х = - 10 ÷ ( - 3)
х =