х: 7 = 330 – 274
x/7=56
x=56/7
x=8
(502 - 2) a = 1000
500*a=1000
a=1000/500
a=2
x + 30 . 5 = 365
x+150=365
x=365-150
x= 215
х: 4 = 100 - 22
x/4=78
x=78*4
x=312
х: 7 = 330 – 274
x/7=56
x=56/7
x=8
(502 - 2) a = 1000
500*a=1000
a=1000/500
a=2
x + 30 . 5 = 365
x+150=365
x=365-150
x= 215
х: 4 = 100 - 22
x/4=78
x=78*4
x=312