Question

решите :

(1600+t):80=60
2000:F-670=1330
1300-(d-678)=400
1600:80+t=60
(2000:600):f=70
d-(1300-678)=400

Answer 1

1) 1600+t=60/80=3/4=0,75
t=0,75-1600=-1599,25
2) 2000/f=1330+670=2000
f=2000/2000=1
3) d-678=1300-400=900
d=900+678=1578
4) t=60-(1600/80)=60-20=40
5) 10/3=70f
f=10/3*1/70=1/21
6) d=400-622=-222