200-x=36+1870*3=y+54a-8*6=67b/4=80-45

Question

200-x=36+18
70*3=y+54
a-8*6=67
b/4=80-45

Answer 1

1)200-х=54
х=200-54
х=146
2)210=у+54
у=210-54
у=156
3) а-48=67
а=48+67
а=115
4) в/4=35
в=4*35
в=140