(d-389)*3=807 8*(5400-s)=5536 t:(6400-6393)=8500 (119+h):8=765 Помогите!!!....

Question

(d-389)*3=807
8*(5400-s)=5536
t:(6400-6393)=8500
(119+h):8=765
Помогите!!!....

Answer 1

1)3d-1167=807
3d=807+1167
3d=1974
d=1974/3
d=658
2)43200-8s=5536
8s=43200-5536
8s=37664
s=37664/8
s=4708
3)t/(6400-6393)=8500
t/7=8500
t=8500*7
t=59500