Question

Rezolva exercitile 575-b×32-45=50 (100×d-110)÷39=10

Answer 1

575-b×32-45=50
530-b×32=50
B×32=530-50
B×32=480
B=480:32
B=15

(100×d-110):39=10
(100×d-110)=10×39
(100×d-110)=390
(100×d)=390+110
(100×d)=500
D=500:100
D=5

Answer 2

575-b×32-45=50
575-b×32=95
575-95 = 32×b
    b = 480:32
    b = 15

(100×d-110)÷39=10
(100×d-110)=390
    100d = 500
         d = 5