Уравнения:(d-389)*3=807,8*(5400-s)=5536,t:

Question

Уравнения:(d-389)*3=807,8*(5400-s)=5536,t:

Answer 1

(d - 389) * 3 = 807
d - 389 = 807 : 3
d - 389 = 269
d = 269 + 389
d = 658

8 * (5400 - s) = 5536
5400 - s = 5536 : 8
5400 - s = 692
s = 5400 - 692
s = 4708