Решите уравнения 1) 7(x:23)=560 2) c:16+1273=1897 3) (180:y)40=2400 4)26000-a=50228 5)23x-27=2250 6)510-9y=438

1) 7(x:23)=560
x:23 = 560:7
x = 1840
2) c:16+1273=1897
c:16 = 1897 - 1273
c = 9984
3) (180:y)40=2400
180:y = 2400:40
y = 3
4)26000-a=50228
a = 26000 - 502*28
a = 11944
5)23x-27=2250
x = (2250 + 27):23
x = 99
6)510-9y=438
y = (510 - 438):9
y = 8
7)34x-12=260
x = (260 + 12):34
x = 8
8)2400:(317+x)=3
x = (2400:3) - 317
x = 483