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

7(x-19)=133
7x-133=133
7x=133+133
x=266/7
x=38
Ответ: x=38

9*(213-2x)=927
1917-18x=927
18x=1917-927
18x=990
x=990/18
x=55
Ответ: x=55

[tex] \\ \frac{1344}{x+6} =32 \\ \\x+6=1344/32 \\ \\ x+6=42 \\ \\ x=36 \\ [/tex]
Ответ: x=36

[tex] \\ \frac{384}{51-5x} =24 \\ \\ 51-5x=384/24 \\ \\ 51-5x=16 \\ \\ 5x=51-16 \\ \\ x=35/5 \\ \\ x=7 \\ [/tex]
Ответ: x=7

1344:(x+26)=32
x26=1344:32.
x26=42.
x=42-16
x=16
384:(51-5x)=24
384=1224-120x
120x=840
x=7