\(7\times11-\left(x+12\right)\times8\times3-79:5=100\)
\(\Rightarrow77-24x-288-15,8-100=0\)
\(\Rightarrow-24x=326,8\)
\(\Rightarrow x=-\dfrac{817}{60}\)
=>77-(x+12)*24-79:5=100
=>(x+12)*24=-38,8
=>x+12=-97/60
=>x=-817/60
=> 77 - (x + 12) . 24 - 79 : 5 = 100
=> (x + 12) . 24 = -38,8
=> x + 12 = \(\dfrac{-97}{60}\)
=> x = \(\dfrac{-817}{60}\)