`132 - [x + 1 xx 4 ]=56`
`-> 132 - x - 4 = 56`
`-> 132 - x = 60`
`-> x = 72`
132 - [ x + ( 243 : 27 - 8) x 4 ] = 56
[ x + ( 9 - 8) x 4 ] = 132 - 56
[ x + 1 x 4 ] = 76
x + 4 = 76
x = 76 - 4
x = 72
\(132-\left[x+\left(243:27-8\right)\cdot4\right]=56\)
\(x+1\cdot4=132-56\)
\(x+4=76\)
\(x=76-4\)
\(x=72\)
vay \(x=72\)