Răspuns :
[36:(24-x)+29]:5=7
[36:(24-x)+29]=7*5
[36:(24-x)+29]=35
36:(24-x)+29=35
36:(24-x)=35-29
36:(24-x)=6
24-x=36:6
24-x=6
x=24-6
x=18
[36:(24-x)+29]=7*5
[36:(24-x)+29]=35
36:(24-x)+29=35
36:(24-x)=35-29
36:(24-x)=6
24-x=36:6
24-x=6
x=24-6
x=18
[ 36: ( 24-x ) + 29 ]: 5 = 7
36: ( 24 -x ) + 29= 7x5
36: ( 24-x) + 29=35
36 : ( 24- x) =35-29
36: ( 24-x ) =6
24-x=36: 6
24-x=6
x=24-6
x=18