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

Ну.. Чёт тип того 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