Question

3ab3:ab=87

Tìm ab ?

Answer 1

3ab3:ab=87

suy ra: (3000+a00+b00+3):ab=87

suy ra: (3003+ab0):ab=87

suy ra: 3003:ab+ab0:ab=87

suy ra: 3003:ab+10=87

suy ra: 3003:ab=77

suy ra: ab=3003:77

suy ra: ab=39

Answer 2

3ab3 = ab x 87

 3003 + ab x 10 = ab x 87

ab x 77 = 3003

ab = 39

 So can tim la 39

Answer 3

3ab3 = ab x 87

 3003 + ab x 10 = ab x 87

ab x 77 = 3003

ab = 39

 So can tim la 39

Answer 4

so do la 39