1) 7(х-19)=133 2) 9(213-2х)=927 3) 1344: (х+26)=32 4)384: (51-5х)=24

1) 7(х-19)=133
7x - 133 = 133
7x = 133 + 133
7x = 266
x = 266/7
x = 38
2) 9(213-2х)=927
1917 - 18x = 927
18x = 1917 - 927
18x = 990
x = 990 / 18
x = 55
3) 1344:(х+26)=32
1344 / (x+26) = 32
32(x + 26) = 1344
x + 26 = 1344/32
x + 26 = 42
x = 42 - 26
x = 16
4)384:(51-5х)=24
384/(51 - 5x) = 24
24(51 - 5x) = 384
51 - 5x = 384 / 24
51 - 5x = 16
5x = 51 - 16
5x = 35
x = 35 / 5
x = 7