Ответ:

133+x+57=218

190+x=218

x=218-190

x=28

248-(y+128)=24

248-y-128=24

120-y=24

y=120-24

y=96

(24-x)+39=49

-x+24+39=49

-x+63=49

x=63-49

x=14

Ответ:

(133+x)+57=218

133+x=218-57

133+x=161

x=161-133

x=28

248-(y+128)=24

y+128=248-24

y+128=224

y=224-128

y=96

(24-x)+39=49

24-x=49-39

24-x=10

x=24-10

x=14

(y+267)-97=538

y+267=538+97

y+267=635

y=635-267

y=368

163+(87+n)=303

87+n=303-163

87+n=140

n=140-86

n=54

(x-24)-56=134

x-24=134+56

x-24=190

x=190+24

x=214