1. 2,5c+1,2+3,6c+5=6,1с+6,8
2. 8,8-9,7d-2,5d-3,7=5,1-12,2d
1. 2.5с+1.2+3.6с+5=(2.5+3.6)с+6.2=6.1с+6.2
2. 8.8-9.7d-2.5d-3.7=5.1-(9.7-2.5)d=5.1-12.2d
1. 2,5c+1,2+3,6c+5=6,1с+6,8
2. 8,8-9,7d-2,5d-3,7=5,1-12,2d
1. 2.5с+1.2+3.6с+5=(2.5+3.6)с+6.2=6.1с+6.2
2. 8.8-9.7d-2.5d-3.7=5.1-(9.7-2.5)d=5.1-12.2d