Question

помогите решать уравнения срочно // 390

Answer 1

8700:x=1400-1375
8700:x=25
x=8700:25
x=348
8700:348=1400-1375

6800:x=3710-3685
6800:x=25
x=6800:25
x=272
6800:272=1400-1375


(y+1490)*105=769125
y+1490=769125:105
y+1490=7325
y=7325-1490
y=5835
(5835+1490)*105=769125


(2733+y)*125=850000
2733+y=850000:125
2733+y=6800
y=6800-2733
y=4067
(2733+4067)*125=850000