a+190+190/10=300
a+190+19=300
a+209=300
a=300-209
a=91
575-b*32-45=50
b*32=575-45-50
b*32=480
b=480:32
b=15
c-(600-315/9)=335
c-(600-35)=335
c-565=335
c=335+565
c=900
(100*d-110)/39=10
100*d-110=10x39
100*d-110=390
100*d=390+110
100*d=500
d=500:100
d=5
20*e-(1950+550/100=6175
20*e-2500/100=6175
20*e-25=6175
20*e=6175+25
20*e=6200
e=6200:20
e=310
35f+(800-752/4)/2 =551
35f+(800-188)/2 =551
35f+612/2 =551
35f+306 =551
35f=551-606
35f=245
f=245:35
f=7
g/25+(100-1632/51)*2=286
g/25+(100-32)*2=286
g/25+68*2=286
g/25+136=286
g/25=286-136
g/25=150
g=150x25
g=3750