Lời giải:
\(234-\left\{1800:[x+(6.5^3+7.2^4)]\right\}=232\)
\(234-[1800:(x+862)]=232\)
$1800-(x+862)=234-232=2$
$x+862=1800-2=1798$
$x=1798-862=936$
234 - {1800 : [x + (750 + 112)]} = 232
1800 : [x + (750 + 112)] = 234 - 232
1800 : [x + (750 + 112)] = 2
x + (750 + 112) = 1800 : 2
x + 862 = 900
x = 900 - 862
x = 38
234 - { 1800 : [ x + ( 6 . 53+ 7 . 2 4) ] } = 232
{ 1800 : [ x + ( 6 . 53+ 7 . 2 4) ] } = 234 - 232 = 2
x + ( 6 . 53+ 7 . 2 4) = 1800 : 2 = 900
x + 6 . 125 + 7 . 16 = 900
x + 750 + 112 = 900
x = 900 - 750 - 112 = 38
x = 900 - 750 - 112 = 138
x = 900 - ( 750 + 112 ) = 138