1) 8-5=3
2) 3+8=11
3) 11-5=6
Решение:
1) 10 * 4 = 40
2) 90 - 40 = 50
3) 10 - 4 = 6
4) 6 * 7 = 42
5) 50 – 42 = 8
6) 8 -1 – 1 = 6
7) 6 : 2 = 3
8) 3 – выстрела по 9, 2 по 8 и 1 по 7
V = πR²H = π · 3² · 6 = 54π ≈ 169,56
11a+9a+5a=25a
4y+16y-5y=15y
y+6y+y=8y
45x-15x-6x=24x
74a+6a-40a=40a
6k+12+4k=10k+12
35x+9+15x=50x+9
54y-34y+33=20y+33
19x+55+21x=40x+55
88x+12x-22=100x-22
9*x*50=450x
a*25*4=100a
6*x*7*3=126x
(121/11)*x=11x
5*19*a=95a
87/10-23/4+37/6=(87*6-23*15+37*10)/60=(522-345+370)/60=547/60