Question

1.a)Determinati cifrele a,b,c,d, stiind ca 4a5c=b•1000+3•100+d•10+9
b)Determinati cifrele a,b,c,d stiind ca ab2d=b•1000+c•100+d•10+a
URGENT!DAU COROANA!​

Answer 1

Răspuns:

Explicație pas cu pas:

1a)

4*1000 + a*100 + 5*10 + c = b*1000 + 3*100 + d*10+ 9

b = 4

a = 3

d = 5

c = 9

____________

b)

a*1000 + b*100 + 2*10 + d = b*1000 + c*100 + d*10 + a

d = 2

a = d = 2

a = b = 2

b = c = 2